CN104426771A - Message forwarding method and message forwarding device - Google Patents

Message forwarding method and message forwarding device Download PDF

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Publication number
CN104426771A
CN104426771A CN201310408342.2A CN201310408342A CN104426771A CN 104426771 A CN104426771 A CN 104426771A CN 201310408342 A CN201310408342 A CN 201310408342A CN 104426771 A CN104426771 A CN 104426771A
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message
broadcast
list item
mac
interface
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CN201310408342.2A
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Chinese (zh)
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沈吉涛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201310408342.2A priority Critical patent/CN104426771A/en
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Abstract

The invention discloses a message forwarding method and a message forwarding device. The message forwarding method comprises the following steps: receiving a message by a first node device to obtain destination media access control (MAC) address information of the message; searching an MAC table stored by the first node device according to the destination MAC address information to determine whether a first matching table item matched with the destination MAC address information existing in the MAC table by the first node device; acquiring interface information from the first matching table by the first node device if determining that the first matching item is saved in the MAC table; determining a second matching table item matched with the interface information in a mandatory broadcast table saved in the first node device according to the interface information by the first node device; and forwarding the message by the first node device in a broadcasting manner if the corresponding forwarding manner of the interface information recorded in the second matching table item is allowable broadcast forwarding.

Description

A kind of method of message repeating and device
Technical field
The present invention relates to the communications field, particularly relate to a kind of message forwarding method and device.
Background technology
In existing Ethernet Circle networking, by utilize ITU-T G.8032 protocol realization link failure perception and switch.Ethernet Circle comprises RPL(Ring ProtectionLink, ring protection link).In normal state, RPL both link ends interface is blocked, and data message cannot forward, and can avoid loop.During link failure when between the node device in Ethernet Circle, the interface of the node device at faulty link two ends is initiatively blocked.Meanwhile, the host node of RPL removes the interface of RPL both link ends, makes data flow can continue through node on the ring and forwards.Wherein, the host node of RPL is in Ethernet Circle, is responsible for control RPL link and blocks and separate the node device blocked in two end node devices of RPL link.
In existing Ethernet two layers of repeating process, after the node device in ethernet ring network receives unicast message, according to the object MAC(Media Access Control in message, medium access control) the MAC table that stores of address search self.If there is the list item of hit in the MAC table self stored, then forward the packet away according to the outlet information of the list item record hit in MAC.The list item hit if do not have in the MAC table self stored, then by broadcasting this message in the broadcast domain at this node device place.
In Ethernet two layers of repeating process, if there is link failure, the interface of the node device at faulty link two ends is initiatively blocked.Meanwhile, the host node of RPL removes the interface of RPL both link ends, and the node device in Ethernet Circle needs to delete in the MAC table of self storage, have recorded the interface entry of the node device at faulty link two ends.Like this, node device after receiving unicast message, can search the MAC table self stored according to the target MAC (Media Access Control) address in message, if do not have the list item hit in the MAC table self stored, then in the broadcast domain at this node device place, broadcast this message.
State in realization in the process of message repeating, inventor finds that in prior art, at least there are the following problems: when link failure, needs each node device the interface message of the node device at the two ends of the link failure of record in the MAC table self stored to be deleted.Now, each node device is needed to travel through the MAC table self stored.If the MAC address entries quantity that each node device stores is larger, then need longer time traversal MAC table, the interface message of the node device at the two ends of the link failure of record in MAC table cannot be deleted in time, make node device according to the interface message of the node device at the two ends of the link failure do not deleted in time of record in MAC table, E-Packet, due to link failure, cannot message transmission, there will be the phenomenon of serious packet loss, thus reduce the quality of Ethernet Circle message repeating.
Summary of the invention
Embodiments of the invention provide a kind of method and device of message repeating, in order to reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, embodiments provides a kind of method of message repeating, comprising: first node equipment receives message, obtains the object medium access control mac address information of described message; Whether this first node equipment, according to described target MAC (Media Access Control) address information, searches the MAC table that this first node equipment is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches; Have described first coupling list item during described MAC shows if determine, then this first node equipment obtains outgoing interface information from described first coupling list item; This first node equipment, according to described outgoing interface information, is determined and is mated list item with second of described outgoing interface information match from the pressure broadcast table that this first node equipment is preserved; If record pass-through mode corresponding to described outgoing interface information in described second coupling list item to forward for allowing broadcast, then this first node equipment is by the mode of broadcast, forwards described message.
In the first possible implementation of first aspect, also comprise: do not have described first coupling list item during described MAC shows if determine, then this first node equipment is by the mode of broadcast, forwards described message.
In conjunction with first aspect, or the first possible implementation of first aspect, in the implementation that the second of first aspect is possible, also comprise: forward for not allowing broadcast if record pass-through mode corresponding to described outgoing interface information in described second coupling list item, then this first node equipment is according to described outgoing interface information, forwards described message.
In conjunction with first aspect, or first of first aspect or the possible implementation of the second, in the third possible implementation of first aspect, message is received at described first node equipment, before obtaining the target MAC (Media Access Control) address information of described message, also comprise: when detecting with the link failure that this first node equipment is direct-connected, the first interface of this first node equipment that faulty link is corresponding described in this first node devices block; This first node equipment sends Signal Fail message to the node device that non-faulting link is corresponding; Pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table, according to the first interface information of described first interface, is updated to allow to broadcast and forwards by this first node equipment.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, in the first interface information of this first node equipment according to described first interface, pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table is updated to after allowing to broadcast and forwarding, also comprise: the list item corresponding with described first interface information in described MAC table, according to described first interface information, is deleted by this first node equipment; Pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table, according to described first interface information, is updated to not allow to broadcast and forwards by this first node equipment.
In conjunction with first aspect, or first of first aspect or the possible implementation of the second, in the 5th kind of possible implementation of first aspect, also comprise: this first node equipment receives the Signal Fail message that the Section Point equipment direct-connected with faulty link sends; This first node equipment, according to described Signal Fail message, determines the second interface corresponding with described Signal Fail message on this first node equipment; And according to the second interface message of described second interface, in the described pressure broadcast table preserve this first node equipment, the pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches is updated to allow to broadcast and forwards.
In conjunction with the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation of first aspect, in described the second interface message according to described second interface, the content update recorded in the list item matched with described second interface message in the described pressure broadcast table preserve this first node equipment is for after allowing to broadcast and forwarding, also comprise: the list item matched with described second interface message in described MAC table, according to described second interface message, is deleted by this first node equipment; Pass-through mode corresponding with the second interface message recorded in the list item that the interface message of described second matches in described pressure broadcast table, according to described second interface message, is updated to broadcast and does not allow to broadcast and forward by this first node equipment.
In conjunction with the 5th or the 6th kind of possible implementation of first aspect, after the Signal Fail message that the Section Point equipment that this first node equipment described receives and faulty link is direct-connected sends, also comprise: this first node equipment is removed and blocked interface corresponding to described first link; Described first link pre-sets, for the backup link of message transmission.。
In conjunction with first aspect, or first of first aspect to the 7th any one the possible implementation, in the 8th kind of possible implementation of first aspect, at this first node equipment described according to described target MAC (Media Access Control) address information, search the MAC table that this first node equipment is preserved, before determining whether to have during described MAC shows and mating list item with first of described target MAC (Media Access Control) address information matches, also comprise: this first node equipment obtains the broadcast domain information of described message; Whether the broadcast domain information of the described message that this first node equipment Inspection obtains is identical with the broadcast domain information preset; This first node equipment described is according to described target MAC (Media Access Control) address information, search the MAC table that this first node equipment is preserved, determine whether to have during described MAC shows mate list item with first of described target MAC (Media Access Control) address information matches and comprise: this first node equipment is when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that this first node equipment is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
Second aspect, embodiments provides a kind of node device, comprising: receiving element, for receiving message; Processing unit, for the object medium access control mac address information of message received described in obtaining; Whether described processing unit, also for according to described target MAC (Media Access Control) address information, searches the MAC table that described node device is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches; Described processing unit, if also have described first coupling list item for determining during described MAC shows, then obtains outgoing interface information from described first coupling list item; Described processing unit, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that described node device is preserved; Transmitting element, when recording pass-through mode corresponding to described outgoing interface information for allowing broadcast to forward for determining at described processing unit in described second coupling list item, by the mode of broadcast, forwards described message.
In the first possible implementation of second aspect, described transmitting element, also for determine at described processing unit described MAC show in do not have described first coupling list item time, by broadcast mode, forward described message.
In conjunction with second aspect, or the first possible implementation of second aspect, in the implementation that the second of second aspect is possible, described transmitting element, also for determining that at described processing unit recording pass-through mode corresponding to described outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to described outgoing interface information, forward described message.
In conjunction with second aspect, or first of second aspect or the possible implementation of the second, in the third possible implementation of second aspect, described processing unit, also for when detecting with the link failure that described node device is direct-connected, block the first interface of described node device corresponding to described faulty link; Described transmitting element, also sends Signal Fail message for the node device corresponding to non-faulting link; Described processing unit, also for the first interface information according to described first interface, is updated to allow to broadcast by pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table and forwards.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation of second aspect, described processing unit, also for according to described first interface information, deletes the list item corresponding with described first interface information in described MAC table; Described process all unit, also for according to described first interface information, are updated to not allow to broadcast by pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table and forward.
In conjunction with second aspect, or first to fourth of second aspect any one possible implementation, in the 5th kind of possible implementation of second aspect, described processing unit, also for obtaining the broadcast domain information of described message; Described processing unit, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset; Described processing unit, also for according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
The third aspect, embodiments provides a kind of node device, comprising: receiving element, for receiving message; Processing unit, for the object medium access control mac address information of message received described in obtaining; Whether described processing unit, also for according to described target MAC (Media Access Control) address information, searches the MAC table that described node device is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches; Described processing unit, if also have described first coupling list item for determining during described MAC shows, then obtains outgoing interface information from described first coupling list item; Described processing unit, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that described node device is preserved; Transmitting element, when recording pass-through mode corresponding to described outgoing interface information for allowing broadcast to forward for determining at described processing unit in described second coupling list item, by the mode of broadcast, forwards described message.
In the first possible implementation of the third aspect, described transmitting element, also for determine at described processing unit described MAC show in do not have described first coupling list item time, by broadcast mode, forward described message.
In conjunction with the third aspect, or the first possible implementation of the third aspect, in the implementation that the second of the third aspect is possible, described transmitting element, also for determining that at described processing unit recording pass-through mode corresponding to described outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to described outgoing interface information, forward described message.
In conjunction with the third aspect, or first of the third aspect or the possible implementation of the second, in the third possible implementation of the third aspect, described receiving element, also for receiving the Signal Fail message that the node device direct-connected with faulty link sends; Described processing unit, also for according to described Signal Fail message, determines the second interface corresponding with described Signal Fail message on described node device; And according to the second interface message of described second interface, in the described pressure broadcast table preserved by described node device, the pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches is updated to allow to broadcast and forwards.
In conjunction with the third possible implementation of the third aspect, in the 4th kind of possible implementation of the third aspect, described processing unit, also for according to described second interface message, deletes the list item matched with described second interface message in described MAC table; Described processing unit, also for according to described second interface message, is updated to broadcast and does not allow to broadcast and forward by pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches in described pressure broadcast table.
In conjunction with the 3rd or the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation of the third aspect, described processing unit, also blocks interface corresponding to described first link for removing; Described first link pre-sets, for the backup link of message transmission.
In conjunction with the third aspect, or the first to five of the third aspect any one possible implementation, in the 6th kind of possible implementation of the third aspect, described processing unit, also for obtaining the broadcast domain information of described message; Described processing unit, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset; Described processing unit, also for according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
Fourth aspect, embodiments provides a kind of node device, comprising: receiver, for receiving message; Processor, for resolving the described message that described receiver receives, obtains the object medium access control mac address information of described message; Whether described processor, also for according to described target MAC (Media Access Control) address information, searches the MAC table that described node device is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches; Described processor, if also have described first coupling list item for determining during described MAC shows, then obtains outgoing interface information from described first coupling list item; Described processor, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that described node device is preserved; Transmitter, when recording pass-through mode corresponding to described outgoing interface information for allowing broadcast to forward for determining at described processor in described second coupling list item, by the mode of broadcast, forwards described message.
In the first possible implementation of fourth aspect, described transmitter, also for determine at described processor described MAC show in do not have described first coupling list item time, by broadcast mode, forward described message.
In conjunction with fourth aspect, or the first possible implementation of fourth aspect, in the implementation that the second of fourth aspect is possible, described transmitter, also for determining that at described processor recording pass-through mode corresponding to described outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to described outgoing interface information, forward described message.
In conjunction with fourth aspect, or first of fourth aspect or the possible implementation of the second, in the third possible implementation of fourth aspect, described processor, also for when detecting with the link failure that described node device is direct-connected, block the first interface of described node device corresponding to described faulty link; Described transmitter, also sends Signal Fail message for the node device corresponding to non-faulting link; Described processor, also for the first interface information according to described first interface, is updated to allow to broadcast by pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table and forwards.
In conjunction with the third possible implementation of fourth aspect, in the 4th kind of possible implementation of fourth aspect, described processor, also for according to described first interface information, deletes the list item corresponding with described first interface information in described MAC table; Described processor, also for according to described first interface information, is updated to not allow to broadcast by pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table and forwards.
In conjunction with fourth aspect, or first to fourth of fourth aspect any one possible implementation, in the 5th kind of possible implementation of fourth aspect, described processor, also for obtaining the broadcast domain information of described message; Described processor, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset; Described processor, also for according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
5th aspect, embodiments provides a kind of node device, comprising: receiver, for receiving message; Processor, for resolving the described message that described receiver receives, obtains the object medium access control mac address information of described message; Whether described processor, also for according to described target MAC (Media Access Control) address information, searches the MAC table that described node device is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches; Described processor, if also have described first coupling list item for determining during described MAC shows, then obtains outgoing interface information from described first coupling list item; Described processor, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that described node device is preserved; Transmitter, when recording pass-through mode corresponding to described outgoing interface information for allowing broadcast to forward for determining at described processor in described second coupling list item, by the mode of broadcast, forwards described message.
In the first possible implementation in the 5th, described transmitter, also for determine at described processor described MAC show in do not have described first coupling list item time, by broadcast mode, forward described message.
In conjunction with the 5th aspect, or the 5th the first possible implementation of aspect, in the implementation that the second in the 5th is possible, described transmitter, also for determining that at described processor recording pass-through mode corresponding to described outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to described outgoing interface information, forward described message.
In conjunction with the 5th aspect, or the implementation that first or the second of the 5th aspect are possible, in the third the possible implementation in the 5th, described receiver, also for receiving the Signal Fail message that the Section Point equipment direct-connected with faulty link sends; Described processor, also for according to described Signal Fail message, determines the second interface corresponding with described Signal Fail message on described node device; And according to the second interface message of described second interface, in the described pressure broadcast table preserved by described node device, the pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches is updated to allow to broadcast and forwards.
In conjunction with the third possible implementation of the 5th aspect, in the 4th kind of possible implementation in the 5th, described processor, also for according to described second interface message, deletes the list item matched with described second interface message in described MAC table; Described processor, also for according to described second interface message, is updated to broadcast and does not allow to broadcast and forward by pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches in described pressure broadcast table.
In conjunction with the 3rd or the 4th kind of possible implementation of the 5th aspect, in the 5th kind of possible implementation in the 5th, described processor, also blocks interface corresponding to described first link for removing; Described first link pre-sets, for the backup link of message transmission.
In conjunction with the 5th aspect, or the first of the 5th aspect to the 5th any one possible implementation, in the 6th kind of possible implementation in the 5th, described processor, also for obtaining the broadcast domain information of described message; Described processor, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset; Described processor, also for according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
Embodiments provide a kind of method and device of message repeating, first node equipment is after obtaining the target MAC (Media Access Control) address information of the message received, show according to this target MAC (Media Access Control) address information searching MAC, determine after mating list item with target MAC (Media Access Control) address information to mate first, outgoing interface information is obtained from the first coupling list item, and according to outgoing interface information, find from pressure broadcast table and mate list item with second of outgoing interface information match.When recording pass-through mode corresponding to outgoing interface information for allowing broadcast to forward in the second coupling list item, message is forwarded to other node devices by the mode of broadcast.Like this, first node equipment forces broadcast table by searching, at needs, forwarding report is forwarded to other node devices by broadcast mode, thus can when link failure, timely the mode of message by broadcast is forwarded, thus decrease the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of the method for a kind of link switchover that Fig. 1 provides for the embodiment of the present invention;
The schematic flow sheet of the method for the another kind of link switchover that Fig. 2 provides for the embodiment of the present invention;
The schematic flow sheet of the method for the another kind of link switchover that Fig. 3 provides for the embodiment of the present invention;
The structural representation of a kind of Ethernet Circle that Fig. 4 provides for the embodiment of the present invention;
The functional schematic of a kind of node device that Fig. 5 provides for example of the present invention;
The functional schematic of the another kind of node device that Fig. 6 provides for example of the present invention;
The structural representation of a kind of node device that Fig. 7 provides for example of the present invention;
The structural representation of the another kind of node device that Fig. 8 provides for example of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, clearly describe the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of method of message repeating, as shown in Figure 1, comprising:
101, first node equipment receives message, obtains the object medium access control mac address information of described message.
Concrete, first node equipment, after receiving message, is resolved message, obtains in message and searches MAC(Media Access Control, medium access control) the target MAC (Media Access Control) address information that needs when showing.
It should be noted that, the embodiment of the present invention is applied to the process of Ethernet Circle pretection switch.MAC table is stored in each node device.
It should be noted that, it is the interface that the link that do not break down is corresponding that first node equipment receives the interface of message.The interface message of self that the link of first node equipment not by breaking down is corresponding.
Whether 102, this first node equipment is according to described target MAC (Media Access Control) address information, searches the MAC table that this first node equipment is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
Concrete, in the process that Ethernet two layers forwards, self store M AC of first node equipment shows, first node equipment can according to the target MAC (Media Access Control) address information of the described message received, search the MAC table self stored, thus determine whether to mate list item with first of the target MAC (Media Access Control) address information match of the described message received in the MAC table that can store at self.
That is, first node equipment is after getting the target MAC (Media Access Control) address information of the message received, according to the target MAC (Media Access Control) address information of the message received, the MAC Address recorded during the MAC preserved with self shows is compared, check in the MAC Address of record in MAC table whether have the list item identical with the target MAC (Media Access Control) address of the message received, be and determined whether the first coupling list item.
If 103 determine there is described first coupling list item during described MAC shows, then this first node equipment obtains outgoing interface information from described first coupling list item.
It should be noted that, described outgoing interface information refers to that node device forwards the packet the interface message to next-hop node equipment.
Further, outgoing interface information comprises the interface number of outgoing interface.
It should be noted that, outgoing interface information can also comprise: the packaging information of message, and precedence information etc., the present invention does not limit this.
Concrete, first node equipment is when the MAC table stored according to the target MAC (Media Access Control) address information searching self of the message received, if determine in MAC table to have and mate list item with first of target MAC (Media Access Control) address information match, then can obtain outgoing interface information from the content of the first coupling list item record.
Due to first node equipment shown by MAC in have recorded corresponding relation between MAC Address and interface, so, when mating list item if record in MAC table with first of the target MAC (Media Access Control) address information match of the message received, the interface message that the target MAC (Media Access Control) address of the message received is corresponding can be obtained from the first coupling list item, be outgoing interface information.By outgoing interface information, first node equipment forwards the packet the node device to down hop.
104, this first node equipment is according to described outgoing interface information, determines and mate list item with second of described outgoing interface information match from the pressure broadcast table that this first node equipment is preserved.
It should be noted that, force broadcast table to be that first node equipment pre-sets, have recorded interface message and whether pass-through mode corresponding to this interface message is broadcast pass-through mode.
Concrete, first node equipment, after obtaining outgoing interface information, according to outgoing interface information, can search the pressure broadcast table self stored, and can find and mate list item with second of outgoing interface information match in pressure broadcast table.
That is, first node equipment is after getting outgoing interface information by MAC table, can with this outgoing interface information for keyword, search the interface message recorded in each list item of the pressure broadcast table that self stores, can from forcing the list item finding out outgoing interface information match therewith broadcast table, thus whether can obtain pass-through mode corresponding to the outgoing interface information that records in this list item be broadcast pass-through mode, be and determine the second coupling list item in pressure broadcast table.
It should be noted that, in first node equipment, the interface message of record in MAC table, all has record in pressure broadcast table.
If record pass-through mode corresponding to described outgoing interface information in 105 described second coupling list items to forward for allowing broadcast, then this first node equipment is by the mode of broadcast, forwards described message.
Concrete, first node equipment is after obtaining the second coupling list item, check the content recorded in the second coupling list item, if record pass-through mode corresponding to outgoing interface information in the second coupling list item to forward for allowing broadcast, then declarative section point device by the mode of message by broadcast, can be forwarded to other node devices.
It should be noted that, in Ethernet Circle, if do not have link occurs fault, then pass-through mode corresponding to each interface message recorded in the pressure broadcast table in each node device is and does not allow broadcast to forward.When the link occurs fault that first node equipment is direct-connected, then first node equipment needs the pass-through mode of the interface message of forcing the interface direct-connected with faulty link recorded in the list item of broadcast table to upgrade, the pass-through mode being about to the interface message of the interface direct-connected with faulty link recorded in pressure broadcast table changes to allow to broadcast and forwards, so that the message broadcasting this received is forwarded to other node devices.
First node equipment, after obtaining the second coupling list item, checks that whether the content that records in the second coupling list item is that pass-through mode corresponding to outgoing interface information forwards for allowing broadcast.If the content recorded in the second coupling list item is outgoing interface information, corresponding pass-through mode forwards for allowing broadcast, then illustrate in Ethernet Circle, the link occurs fault corresponding with outgoing interface information, the message repeating that this receives by the mode that now first node equipment passes through broadcast is to other node devices, thus the link of message can be switched in time, ensure the normal forwarding of message.
Embodiments provide a kind of method of link switchover, first node equipment is after obtaining the target MAC (Media Access Control) address information of the message received, show according to this target MAC (Media Access Control) address information searching MAC, determine after mating list item with target MAC (Media Access Control) address information to mate first, outgoing interface information is obtained from the first coupling list item, and according to outgoing interface information, find from pressure broadcast table and mate list item with second of outgoing interface information match.When recording pass-through mode corresponding to outgoing interface information for allowing broadcast to forward in the second coupling list item, message is forwarded to other node devices by the mode of broadcast.Like this, first node equipment forces broadcast table by searching, at needs, forwarding report is forwarded to other node devices by broadcast mode, thus can when link failure, timely the mode of message by broadcast is forwarded, thus decrease the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.
Embodiments provide a kind of method of link switchover, in inventive embodiments, with in Ethernet Circle, have three node devices to be node device A respectively, node device B, node device C are that example is described.Wherein, node device A is equipment control node, controls the RPL(Ring Protection Link in Ethernet Circle, ring protection link).Link between node device B and node device C is link BC.Link between node device B and node device A is link AB, and the link between node device A and node device C is RPL.Suppose in normal state, the RPL between node device A and node device C is in blocking state.After node device C receives message, target MAC (Media Access Control) address information searching MAC according to message shows, according to the result of searching, this message is sent to node device B, after node device B receives message, the target MAC (Media Access Control) address information searching MAC according to message shows, according to the result of searching, this message is sent to node device A, by node device, this message repeating is gone out.In Ethernet Circle, if there is link to send fault, described method, as shown in Fig. 2, Fig. 3, Fig. 4, comprising:
201, first node equipment is when link failure being detected, blocks the first interface of described first node equipment corresponding to described faulty link.
Concrete, first node equipment Inspection, to when needing the link occurs fault of message transmission, needs to block the interface that on this first contact equipment, faulty link is direct-connected therewith, is first interface, thus message is not forwarded by this first interface.
It should be noted that, first node equipment is malfunctioning node equipment, is the node device of the direct link connection of breaking down.
It should be noted that, how first node equipment blocks first interface corresponding to link, same as the prior art, does not repeat them here.
Suppose that link BC breaks down, then node device B and node device C is first node equipment, is malfunctioning node equipment, and node device A is the Section Point equipment that non-faulting link is corresponding.Node device B and node device C when detecting that link BC breaks down, interface that node device B blocks node device B, that be connected with link BC, i.e. interface 1.Interface that node device C blocks node device C, that be connected with link BC, i.e. interface 2, shown in figure 4.
202, first node equipment sends Signal Fail message to the Section Point equipment that non-faulting link is corresponding.
Concrete, after first node equipment Inspection to link failure, can by the link of the Section Point equipment room corresponding with non-faulting link, the Section Point equipment corresponding to the non-faulting link in the broadcast domain at first node equipment place sends Signal Fail message.Or, Signal Fail message can be sent by the mode of broadcast to the Section Point equipment that the non-faulting link in the broadcast domain at first node equipment place is corresponding.The Section Point equipment that non-faulting link is corresponding receives the Signal Fail message that first node equipment is the transmission of malfunctioning node equipment, thus can know there is link occurs fault, and can carry out respective handling in time.
It should be noted that, in embodiments of the present invention, the broadcast domain at the Section Point equipment place that the broadcast domain at first node equipment place is corresponding with non-faulting link is identical.
In Ethernet Circle, all node devices are in same broadcast domain.Node device B and node device C is after link BC fault being detected, and node device B and node device C sends Signal Fail message to node device A.When node device B sends Signal Fail message to node device A, because link AB does not break down, be in normal condition, then node device B can send Signal Fail message by link AB to node device A.When node device C sends Signal Fail message to node device A, due to link BC fault, and the RPL between node device C and node device A is in blocking state, and node device C can send Signal Fail message by the mode of broadcast to node device A.Node device A can receive the Signal Fail message of node device B transmission and the Signal Fail message of signal node C transmission, thus can know link BC fault.
203, first node equipment is according to the first interface information of described first interface, and in the pressure broadcast table preserve first node equipment, the pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match is updated to allow to broadcast and forwards.
Concrete, first node equipment is after the Section Point equipment corresponding to non-faulting link sends Signal Fail message, first node equipment is according to the first interface information of first interface, and in the pressure broadcast table store self, the pass-through mode corresponding with the first interface information of the list item record of first interface information match is updated to allow to broadcast forwards by not allowing to broadcast forwarding.
Further, first interface information can be the interface number of first interface.
It should be noted that, first interface information can also comprise: the packaging information of message, and precedence information etc., the present invention does not limit this.
It should be noted that, in embodiments of the present invention, all store in the Section Point equipment that first node equipment is corresponding with non-faulting link and force broadcast table, and forcing the list item including interface message corresponding to other node devices in broadcast table.When link does not break down, the pass-through mode forcing each interface message of recording in the list item of each interface message in broadcast table corresponding does not allow broadcast to forward, and can ensure that node device is forwarded the packet to other node devices by corresponding link like this.
At node device A, store separately in node device B and node device C and force broadcast table.And in the pressure broadcast table stored in node device A, include the list item of the list item of interface message corresponding to node device B and interface message corresponding to node device C.The list item of the list item of interface message corresponding to node device A and interface message corresponding to node device C is included in the pressure broadcast table stored in node device B.The list item of the list item of interface message corresponding to node device A and interface message corresponding to node device B is included in the pressure broadcast table stored in node device C.
Node device B and node device C is after sending Signal Fail message to node device A, and pass-through mode corresponding for this interface message in the list item of interface message corresponding for the node device C recorded in the pressure broadcast table of node device B allows broadcast to forward by not allowing broadcast forwarding to be updated to by node device B.Pass-through mode corresponding to this interface message in the list item of the interface message that the node device B recorded in the pressure broadcast table of node device C just node device C is corresponding allows broadcast to forward by not allowing broadcast forwarding to be updated to.
204, the Section Point equipment that non-faulting link is corresponding removes interface corresponding to blocking-up first link.
Wherein, described first link pre-sets, for the backup link of message transmission.
It should be noted that, in embodiments of the present invention, the Section Point equipment that non-faulting link is corresponding is the node device of non-faulting, refers to the node device that connected link does not break down.
Concrete, Section Point equipment corresponding to non-faulting link is after receiving Signal Fail message, know there is link occurs fault, now, first link can be removed and block, thus Section Point equipment can be made to carry out the forwarding of message by the first link, and then realize the link switchover in Ethernet Circle.
RPL between node device C after the Signal Fail message receiving node device B and node device C transmission, can remove and blocks, thus message can be forwarded by RPL link, and then realize the link switchover in Ethernet Circle by node device A.
205, the Section Point equipment that non-faulting link is corresponding, according to described Signal Fail message, determines the second interface corresponding with described Signal Fail message on described Section Point equipment; And according to the second interface message of described second interface, in the pressure broadcast table preserve Section Point equipment, the pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches is updated to allow to broadcast and forwards.
It should be noted that, in Signal Fail message, record the relevant information of the loop at faulty link place.In the total interface of the Section Point equipment that non-faulting link is corresponding, the interface in described loop is the second interface.
Concrete, the Section Point equipment that non-faulting link is corresponding receives after first node equipment is the Signal Fail message that malfunctioning node sends, and according to Signal Fail message, Section Point equipment can be determined second interface corresponding with Signal Fail message.According to the second interface message of the second interface, search the pressure broadcast table that Section Point equipment is preserved, thus in the pressure broadcast table preserved by Section Point equipment, the pass-through mode corresponding with the second interface message of the list item record that the second interface message matches is updated to allow to broadcast and forwards by not allowing to broadcast forwarding.
In total interface in node device A, the interface in Ethernet Circle is interface 3 and interface 4.Be and be connected by the link between interface 3 with node device B, be connected by the RPL link between interface 4 with node device C, now, after node device A receives the Signal Fail message of node device B and node device C transmission, the packet failure that node device A can send according to node device B and node device C, determine that the interface of node device A in the Ethernet Circle comprising node device B and node device C is the second interface, be node device A and determine that interface 3 and interface 4 are the second interface, node device A with the interface message of interface 3 for keyword search force broadcast table, pass-through mode corresponding with the interface 3 of the list item record that the interface message of interface 3 matches in the pressure broadcast table found is updated to allow to broadcast forwards by not allowing to broadcast forwarding.Equally, pass-through mode corresponding with the interface 4 of the list item record that the interface message of interface 4 matches in the pressure broadcast table found for broadcast table is forced in keyword search with the interface message of interface 4, is updated to allow to broadcast forwards by not allowing to broadcast forwarding by node device A.
It should be noted that, the embodiment of the present invention does not limit the order between 203 and 204-205.Only can perform 203 now, then perform 204-205; Also first can perform 204-205, then perform 203; 203 and 204-205 can also be performed simultaneously.In the example shown, a kind of situation is only indicated.
206, first node equipment or Section Point equipment corresponding to non-faulting link receive and analytic message, obtain the target MAC (Media Access Control) address information of described message.
Concrete, first node equipment or Section Point equipment corresponding to non-faulting link receive and analytic message, and the target MAC (Media Access Control) address information obtaining described message can refer step 101.
Further, first node equipment or Section Point equipment corresponding to non-faulting link can also pass through analytic message, obtain the broadcast domain information of described message.
Receive and analytic message with node device C below, acquisition target MAC (Media Access Control) address information and broadcast domain information are that example is described, and the processing method of node device A and node device B is identical with node device C, does not repeat them here.If node device C receives message, then node device C resolves this message, can obtain the target MAC (Media Access Control) address information of this message.Further, node device C, when resolving this message, can also obtain the broadcast domain information of this message.
Optionally, broadcast domain information can by the VLAN(Virtual LocalArea Network carried in message, VLAN) Tag(label) mark.
If the VLAN Tag carried in message is 100, then illustrate that the broadcast domain of this message is broadcast domain 100, node device C resolves this message, and the broadcast domain information obtaining this message belongs to broadcast domain 100 in message broadcasting territory for this reason.
Further, the value of the VLAN Tag carried in message can be the arbitrary value in 1 to 4094, and this does not limit this.
It should be noted that, first node equipment or Section Point equipment corresponding to non-faulting link also can according to the broadcast domain information of interface determination message receiving message.Certainly, first node equipment or node device corresponding to non-faulting link can obtain the broadcast domain information of message by other means, and the present invention does not limit this.
207, whether the described broadcast domain information that obtains of first node equipment or Section Point equipment Inspection corresponding to non-faulting link is identical with the broadcast domain information preset.
Concrete, first node equipment or Section Point equipment corresponding to non-faulting link are when obtaining the broadcast domain information of message, and first node equipment or Section Point equipment corresponding to non-faulting link have known the broadcast domain that message is supported.This broadcast domain information and self default broadcast domain information are compared, determines whether identical with the broadcast domain information of self.
If determine, the default broadcast domain information of the broadcast domain information of the message obtained and self is different, then illustrate that this message can not be broadcasted, then by this packet loss at the broadcast domain of first node equipment or Section Point equipment corresponding to non-faulting link.
If determine, the default broadcast domain information of the broadcast domain information of the message obtained and self is identical, then illustrate that this message can be broadcasted by the broadcast domain of first node equipment or Section Point equipment corresponding to non-faulting link.
The broadcast domain information of Receive message and self default broadcast domain information are compared by node device C, determine that the broadcast domain information of Receive message is identical with the broadcast domain information that self presets.
Suppose that broadcast domain information is identified by the VLAN Tag of message, if the broadcast domain presetting node device C is broadcast domain 100, then after receiving message, according to the VLAN Tag of the message parsed, by checking that VLAN Tag can know the broadcast domain belonging to message, if the VLAN Tag parsed is 100, then illustrate that the broadcast domain of message is broadcast domain 100, now node device C can determine that the broadcast domain information of Receive message is identical with the broadcast domain information that self presets, then carry out 208.
Whether 208, first node equipment or node device corresponding to non-faulting link are according to described target MAC (Media Access Control) address information, search the MAC table self preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
Concrete, first node equipment or node device corresponding to non-faulting link are when detecting that the described broadcast domain information of acquisition is identical with the broadcast domain information preset, according to described target MAC (Media Access Control) address information, search the MAC table self preserved, determine whether to have in the described MAC table self preserved to mate list item with first of described target MAC (Media Access Control) address information matches.Specifically with reference to 102, can not repeat them here.
Node device C is when the broadcast domain information of the message determining acquisition is identical with the broadcast domain information preset, according to the target MAC (Media Access Control) address information obtained from message in 206, search the MAC table that node device C preserves, determine whether to have in the MAC table that node device C preserves to mate list item with first of the target MAC (Media Access Control) address information match obtained from message.
Alternatively, mate list item if having in determining the MAC table that first node equipment or node device corresponding to non-faulting link are preserved with first of described target MAC (Media Access Control) address information matches, then perform 209a-211a1,212-215, or, 209-211a2,212-215.
Alternatively, if do not mate list item with first of described target MAC (Media Access Control) address information matches in determining the MAC table that first node equipment or node device corresponding to non-faulting link are preserved, then 209b is performed, 212-215.
If 209a first node equipment or Section Point equipment corresponding to non-faulting link determine there is described first coupling list item during described MAC shows, then from described first coupling list item, obtain outgoing interface information.
It should be noted that, outgoing interface information may be used for searching the pressure broadcast table that first node equipment or node device corresponding to non-faulting link are preserved.
Concrete, can refer step 103, do not repeat them here.
Node device C is when the MAC table preserved according to target MAC (Media Access Control) address information searching node device C, find when mate list item with first of target MAC (Media Access Control) address information match in the MAC table that node device C preserves, from the first coupling list item, obtain the outgoing interface information of pressure broadcast table of searching for query node equipment C preservation.
If 209b first node equipment or Section Point equipment corresponding to non-faulting link are determined during described MAC shows do not have described first coupling list item, then by the mode of broadcast, forward this message.
Concrete, first node equipment or Section Point equipment corresponding to non-faulting link are according to target MAC (Media Access Control) address information, find the first coupling list item matched during the MAC that MAC shows or Section Point equipment is preserved do not preserved at first node equipment shows, then this message is forwarded to other node devices by the mode of broadcast.
If node device C is when the MAC table preserved according to target MAC (Media Access Control) address information searching node device C, node device C preserve MAC table in do not find mate list item with first of target MAC (Media Access Control) address information match time, this message can be sent to other device nodes by its all link by node device C.Due in this example, the link BC between node device B and node device C sends fault, then node device B cannot the message of receiving node equipment C broadcast transmission.Node device A can receive the message of node device C broadcast transmission.
Section Point equipment corresponding to 210a, first node equipment or non-faulting link, according to described outgoing interface information, is determined and is mated list item with second of described outgoing interface information match from the pressure broadcast table that self preserves.
Concrete, with reference to 104, can not repeat them here.
The MAC table that node device C preserves from node device C with after first of target MAC (Media Access Control) address information match mates in list item and obtains outgoing interface information, according to the pressure broadcast table that the outgoing interface information searching node device C of this acquisition preserves, thus determine to mate list item with second of outgoing interface information match the pressure broadcast table can preserved from node device C.
It should be noted that, first node equipment or Section Point equipment corresponding to non-faulting link different according to the content of the second coupling list item record, the step of execution is different.If the pass-through mode that the outgoing interface information of the second coupling list item record is corresponding forwards for allowing broadcast, then perform 211a1.If the pass-through mode that the outgoing interface information of the second coupling list item record is corresponding forwards for not allowing broadcast, then perform 211a2.
It should be noted that, if the pass-through mode that the outgoing interface information of the second coupling list item record is corresponding forwards for not allowing broadcast, then illustrate that the link that this outgoing interface is corresponding does not break down, now, without the need to being E-Packeted by the mode of broadcast, this message can be forwarded by the link that outgoing interface is corresponding.
Forward if record pass-through mode corresponding to outgoing interface information in the described second coupling list item of 211a1 for allowing broadcast, then first node equipment or Section Point equipment corresponding to non-faulting link are by the mode of broadcast, forward this message.
Concrete, with reference to 105, can not repeat them here.
Node device C is after obtaining the second coupling list item, check that pass-through mode corresponding to the outgoing interface information that records in the second coupling list item allows broadcast to forward, then message is all sent this message in the direct-connected all links of node device C, thus node device A can be made to receive message.Because the link BC between node device B and node device C sends fault, then node device B cannot the message of receiving node equipment C broadcast transmission.
Forward if record pass-through mode corresponding to outgoing interface information in the described second coupling list item of 211a2 for not allowing broadcast, then first node equipment or Section Point equipment corresponding to non-faulting link are according to described outgoing interface information, forward this message.
Concrete, after finding the second coupling list item in the pressure broadcast table that first node equipment or Section Point equipment are preserved at first node equipment or the pressure broadcast table that Section Point equipment is preserved, record pass-through mode corresponding to outgoing interface information in second coupling list item to forward for not allowing broadcast if determine, then illustrate that forwarding this message can be forwarded by the link that this outgoing interface information is corresponding, then first node equipment or node device corresponding to non-faulting link are according to outgoing interface information, and this message is forwarded to other node devices by the link that this outgoing interface information is corresponding.
When link BC between node device B and node device C does not break down, node device C is after obtaining the second coupling list item, check that pass-through mode corresponding to the outgoing interface information that records in the second coupling list item does not allow broadcast to forward, this message according to the outgoing interface information recorded in this second coupling list item, can be forwarded to node device B by the link BC between node device B by node device C.Node device B is identical to node device B by this message repeating with node device C to the process of node device A by this message repeating, does not repeat them here.
It should be noted that, in the embodiment of the present invention, order between 206-211a1 or 206-211a2 and 201-205 is not limited, first can perform 201-205, at execution 206-211a1 or 206-211a2, also first can perform 206-211a1 or 206-211a2, at execution 201-205,201-205 can also be performed, with 206-211a1 or 206-211a2 simultaneously.Only indicate a kind of situation in the example shown.
212, first node equipment is according to described first interface information, and in the MAC table preserved by first node equipment, the list item corresponding with described first interface information is deleted.
Concrete, after the pass-through mode that first node equipment is corresponding with the first interface information recorded in the list item of described first interface information match in the pressure broadcast table preserved by this first node equipment is updated to and allows to broadcast and forward, according to first interface information, search the MAC table that first node equipment is preserved, find the list item corresponding with first interface information in the MAC table that first node equipment is preserved after, in the MAC table preserved by first node equipment, the list item corresponding with described first interface information is deleted, to make first node equipment when receiving this message afterwards, obtain the target MAC (Media Access Control) address information of this message, search in the MAC table that first node equipment is preserved and mate list item less than first of the target MAC (Media Access Control) address information match with this message, thus directly this message is broadcasted.
After pass-through mode corresponding to this interface message of the list item record of the interface message that the pressure broadcast table interior joint equipment C that node device B preserves by node device B is corresponding is updated to and allows broadcast to forward, node device B is by list item corresponding for this interface message deletion from the MAC table that node device B preserves.That is, after in the pressure broadcast table preserved by node device B of node device B, the pass-through mode of interface 1 correspondence of the list item record of interface 1 is updated to and allows broadcast to forward, node device B is by the deletion from the MAC table that node device B preserves of the MAC address entries of interface 1 correspondence.
After pass-through mode corresponding to this interface message recorded in the list item that the pressure broadcast table interior joint equipment B that node device C preserves by node device C is corresponding is updated to and allows broadcast to forward, node device C is by MAC address entries corresponding for this interface message deletion from the MAC table that node device C preserves.That is, after in the pressure broadcast table preserved by node device C of node device C, the pass-through mode of interface 2 correspondence of the list item record of interface 2 is updated to and allows broadcast to forward, node device C is by the deletion from the MAC table that node device C preserves of the MAC address entries of interface 2 correspondence.
213, first node equipment is according to described first interface information, and in the pressure broadcast table preserve first node equipment, the pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match is updated to not allow to broadcast and forwards.
Concrete, first node equipment is after in the MAC table preserved by first node equipment, the list item corresponding with this first interface information delete, and pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in the pressure broadcast table of first node equipment preservation is updated to not allow to broadcast is forwarded by allowing to broadcast forwarding.
After list item corresponding to interface message corresponding to node device C of node device B in the MAC table preserved by node device B is deleted, pass-through mode corresponding to this interface message recorded in the list item of the interface message that the pressure broadcast table interior joint equipment C that node device B preserves by node device B is corresponding does not allow broadcast forwarding by allowing broadcast forwarding to be updated to.That is, the pass-through mode of interface 1 correspondence recorded in the list item of node device B interface 1 in the pressure broadcast table preserved by node device B does not allow broadcast to forward by allowing broadcast forwarding to be updated to.
MAC that node device C preserves by node device C shows after list item corresponding to interface message corresponding to interior joint equipment B delete, and pass-through mode corresponding to the interface message recorded in the list item of the interface message that the pressure broadcast table interior joint equipment B that node device C preserves by node device C is corresponding does not allow broadcast forwarding by allowing broadcast forwarding to be updated to.That is, the pass-through mode of interface 2 correspondence recorded in the list item of node device C interface 2 in the pressure broadcast table preserved by node device C does not allow broadcast to forward by allowing broadcast forwarding to be updated to.
214, the Section Point equipment that non-faulting link is corresponding is according to described second interface message, and the list item matched with described second interface message in the MAC table preserved by Section Point equipment is deleted.
Concrete, Section Point equipment corresponding to non-faulting link is according to the second interface message, and the list item matched with the second interface message in the MAC table preserved by Section Point equipment is deleted, and with reference to 212, can not repeat them here.
Node device A is according to described second interface message, and namely according to interface 3 and interface 4, the list item matched with interface 3 in the MAC table preserved by node device A is deleted, and the list item matched with interface 4 in the MAC table preserved by node device A is deleted.
215, the Section Point equipment that non-faulting link is corresponding is according to described second interface message, and in the pressure broadcast table preserve this Section Point equipment, the pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches is updated to broadcast and does not allow to broadcast and forward.
Concrete, Section Point equipment corresponding to non-faulting link is according to the second interface message, in the pressure broadcast table preserve this Section Point equipment, the pass-through mode corresponding with the second interface message recorded in the list item that the second interface message matches is updated to broadcast and does not allow to broadcast and forward, with reference to 213, can not repeat them here.
After the list item of the list item of interface 3 correspondence of node device A in the MAC table preserved by node device A and interface 4 correspondence is deleted, in the pressure broadcast table that node device A preserves by node device A interface 3 list item in the pass-through mode of interface 3 correspondence that records do not allow broadcast forwarding by allowing broadcast forwarding to be updated to.In the pressure broadcast table that node device A preserves by node device A interface 4 list item in the pass-through mode of interface 4 correspondence that records do not allow broadcast to forward by allowing broadcast forwarding to be updated to.
It should be noted that, the embodiment of the present invention does not limit the order performed between 212-213 and 214-215.First can perform 212-213, then perform 214-215; Also first can perform 214-215, then perform 212-213,12-13 and 214-215 can also be performed simultaneously.Only indicate a kind of situation in the example shown.
It should be noted that, if when 206-211a1 or 206-211a2 performs after 201-205, the present invention does not limit the execution sequence between 212-215 and 206-211a1 or 206-211a2.But 212-215 mono-performs after fixing on 201-205.Be, after execution 201-205, first can perform 206-211a1 or 206-211a2, at execution 212-215, also first 212-215 can be performed, at execution 206-211a1 or 206-211a2,206-211a1 or 206-211a2 and 212-215 can also be performed simultaneously, only indicate a kind of situation in the example shown.
Embodiments provide a kind of method of link switchover, node device at the first key message posterior nodal point equipment obtained after obtaining the target MAC (Media Access Control) address information of message, according to the MAC table that this this node device of target MAC (Media Access Control) address information searching is preserved, after determining to mate list item with target MAC (Media Access Control) address information to mate first, outgoing interface information is obtained from the first coupling list item, and according to outgoing interface information, find from the pressure broadcast table that this node device is preserved and mate list item with second of outgoing interface information match.When recording pass-through mode corresponding to outgoing interface information for allowing broadcast to forward in the second coupling list item, this message is forwarded to other node devices by the mode of broadcast.In the MAC table that this node device is preserved, with target MAC (Media Access Control) address information after the first matching list entry deletion mated, the pass-through mode that in again the pressure that this node device is preserved being transmitted, the outgoing interface information of the second coupling list item record is corresponding is updated to and does not allow broadcast to forward.Like this, the pressure broadcast table that this node device is preserved by searching this node device, when needed forwarding report is forwarded to other node devices by broadcast mode, thus can when link failure, in time the mode of message by broadcast is forwarded, reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.And, after respective table entry deletion in the MAC table that this node device is preserved, stop forcing broadcast to forward, thus this node device can be made when obtaining the target MAC (Media Access Control) address information of the message received, search the MAC table that this node device is preserved, if find the first coupling list item in the MAC table that this node device is preserved, then obtain outgoing interface information, forward according to outgoing interface information; If do not find the first coupling list item, then send message by the mode of broadcast, thus ensure that the normal forwarding of message, reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.
Embodiments provide a kind of node device, as shown in Figure 5, comprise receiving element 501, processing unit 502 and transmitting element 503, wherein:
Receiving element 501, for receiving message.
Processing unit 502, for resolving this message that this receiving element 501 receives, obtains the object medium access control mac address information of this message.
It should be noted that, the embodiment of the present invention can be applied in two layers of repeating process of Ethernet Circle.MAC table is stored in each node device.
Whether described processing unit 502, also for according to this target MAC (Media Access Control) address information, searches the MAC table that this node device is preserved, determine to have in the MAC table that this node device is preserved to mate list item with first of this target MAC (Media Access Control) address information matches.
Described processing unit 502, also for: have described first coupling list item in the MAC table that this node device preserves if determine, then from described first coupling list item, obtain outgoing interface information corresponding to this target MAC (Media Access Control) address information.
It should be noted that, described outgoing interface information refers to that this node device forwards the packet the interface message to next-hop node equipment.
Concrete, described processing unit 502, during specifically for showing at the MAC stored according to the target MAC (Media Access Control) address information searching self of the message received, if have in determining the MAC table that this node device is preserved and mate list item with first of this target MAC (Media Access Control) address information match, then can obtain outgoing interface information corresponding to this target MAC (Media Access Control) address information from the content of the first coupling list item record.
Described processing unit 502, also for according to this outgoing interface information, preserves from this node device and forces to determine broadcast table and mate list item with second of this outgoing interface information match.
It should be noted that, force broadcast table to be that node device pre-sets or preserves, have recorded interface message and whether pass-through mode corresponding to this interface message is broadcast pass-through mode.
Concrete, described processing unit 502 specifically for, after the MAC table preserved by this node device gets outgoing interface information corresponding to this target MAC (Media Access Control) address information, can with this outgoing interface information for keyword, search the interface message recorded in each list item of the pressure broadcast table that this node device is preserved, the list item of outgoing interface information match is therewith determined whether the pressure broadcast table can preserved from this node device, thus can determine whether pass-through mode corresponding to the outgoing interface information that records in this list item is broadcast pass-through mode, namely determine whether there is in the pressure broadcast table preserved at this node device and mate list item with second of this outgoing interface information matches.
It should be noted that, in node device, in the MAC table that this node device is preserved, the interface message of record, all has record in the pressure broadcast table that this node device is preserved.
Transmitting element 503, during for determining at described processing unit 502 to record pass-through mode corresponding to outgoing interface information for allowing broadcast to forward in described second coupling list item, by the mode of broadcast, forwards described message.
Further, described transmitting element 503, time also for determining do not have described first coupling list item in the table that this node device is preserved at described processing unit 502, by the mode of broadcast, forwards described message.
Further, described transmitting element 503, also for determining that at described processing unit 502 recording pass-through mode corresponding to outgoing interface information in this second coupling list item forwards for not allowing broadcast, then according to described second key message, forward this message.
Further, when the link failure that this node device is direct-connected, described processing unit 502, also for when the link failure direct-connected with this node device being detected, blocks the first interface of this node device corresponding to described faulty link.
Described transmitting element 503, also sends Signal Fail message for the Section Point equipment corresponding to non-faulting link.
Described processing unit 502, also for the first interface information according to described first interface, pass-through mode corresponding with the first interface information recorded in the list item of this first interface information match in the pressure broadcast table preserved by this node device is updated to allow to broadcast and forwards.
Further, described processing unit 502, also for according to described first interface information, in the MAC table preserved by this node device, the list item corresponding with this first interface information is deleted.
Described processing unit 502, also for according to described first interface information, pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in the pressure broadcast table preserved by this node device is updated to not allow to broadcast and forwards.
Further, described processing unit 502, also for obtaining the broadcast domain information of described message.
Now, described processing unit 502, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset.
Concrete, described processing unit 502, also for according to described target MAC (Media Access Control) address information, search the MAC table that this node device is preserved, determine whether to have in the MAC table that this node device preserves and mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of the described message determining to obtain is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that this node device is preserved, determine whether to have in the MAC table that this node device is preserved to mate list item with first of described target MAC (Media Access Control) address information matches.
Embodiments provide a kind of node device, node device is after obtaining the target MAC (Media Access Control) address information of the message received, show according to this target MAC (Media Access Control) address information searching MAC, after determining that in the MAC table that this node device is preserved, existence mates list item with target MAC (Media Access Control) address information to mate first, the outgoing interface information corresponding with this target MAC (Media Access Control) address information is obtained from the first coupling list item, and according to this outgoing interface information, find from the pressure broadcast table that this node device is preserved and mate list item with second of outgoing interface information match.When recording pass-through mode corresponding to this outgoing interface information for allowing broadcast to forward in the second coupling list item, this message is forwarded to other node devices by the mode of broadcast.Like this, the pressure broadcast table that node device is preserved by searching self, when needed message is forwarded to other node devices by broadcast mode, thus can when link failure, in time the mode of message by broadcast is forwarded, reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.And, after respective table entry deletion in the MAC table that this node device is preserved, stop forcing broadcast to forward, thus can make node device after the target MAC (Media Access Control) address information obtaining the message received, search the MAC table that this node device is preserved, if find the first coupling list item in the MAC table that this node device is preserved, then obtain outgoing interface information, forward according to outgoing interface information; If do not find the first coupling list item, then send message by the mode of broadcast, thus ensure that the normal forwarding of message, reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.
Embodiments provide a kind of node device, as shown in Figure 6, comprising: receiving element 601, processing unit 602 and transmitting element 603, wherein:
Receiving element 601, for receiving message.
Processing unit 602, for resolving this message that this receiving element 601 receives, obtains the object medium access control mac address information of this message.
It should be noted that, the embodiment of the present invention can be applied in two layers of repeating process of Ethernet Circle.MAC table is stored in each node device.
Whether described processing unit 602, also for according to this target MAC (Media Access Control) address information, searches the MAC table that this node device is preserved, determine to have in the MAC table that this node device is preserved to mate list item with first of this target MAC (Media Access Control) address information matches.
Described processing unit 602, also for: have described first coupling list item in the MAC table that this node device preserves if determine, then from described first coupling list item, obtain outgoing interface information corresponding to this target MAC (Media Access Control) address information.
It should be noted that, described outgoing interface information refers to that this node device forwards the packet the interface message to next-hop node equipment.
Concrete, described processing unit 602, during specifically for showing at the MAC stored according to the target MAC (Media Access Control) address information searching self of the message received, if have in determining the MAC table that this node device is preserved and mate list item with first of this target MAC (Media Access Control) address information match, then can obtain outgoing interface information corresponding to this target MAC (Media Access Control) address information from the content of the first coupling list item record.
Described processing unit 602, also for according to this outgoing interface information, preserves from this node device and forces to determine broadcast table and mate list item with second of this outgoing interface information match.
It should be noted that, force broadcast table to be that node device pre-sets or preserves, have recorded interface message and whether pass-through mode corresponding to this interface message is broadcast pass-through mode.
Concrete, described processing unit 602 specifically for, after the MAC table preserved by this node device gets outgoing interface information corresponding to this target MAC (Media Access Control) address information, can with this outgoing interface information for keyword, search the interface message recorded in each list item of the pressure broadcast table that this node device is preserved, the list item of outgoing interface information match is therewith determined whether the pressure broadcast table can preserved from this node device, thus can determine whether pass-through mode corresponding to the outgoing interface information that records in this list item is broadcast pass-through mode, namely determine whether there is in the pressure broadcast table preserved at this node device and mate list item with second of this outgoing interface information matches.
It should be noted that, in node device, in the MAC table that this node device is preserved, the interface message of record, all has record in the pressure broadcast table that this node device is preserved.
Transmitting element 603, during for determining at described processing unit 602 to record pass-through mode corresponding to outgoing interface information for allowing broadcast to forward in described second coupling list item, by the mode of broadcast, forwards described message.
Further, described transmitting element 603, time also for determining do not have described first coupling list item in the table that this node device is preserved at described processing unit 602, by the mode of broadcast, forwards described message.
Further, described transmitting element 603, also for determining that at described processing unit 602 recording pass-through mode corresponding to outgoing interface information in this second coupling list item forwards for not allowing broadcast, then according to described second key message, forward this message.
Further, do not break down in all links that node device is direct-connected, and during the direct-connected link occurs fault of other node devices in loop,
Described receiving element 601, also for receiving the Signal Fail message that the node device direct-connected with faulty link sends.
Described processing unit 602, also for according to described Signal Fail message, determines the second interface corresponding with described Signal Fail message on described node device; And according to the second interface message of described second interface, pass-through mode corresponding with the second interface message recorded in the list item that this second interface message matches in the pressure broadcast table preserved by this node device is updated to allow to broadcast and forwards.
Further, described processing unit 602, also for according to described second interface message, deletes the list item matched with described second interface message in described MAC table.
Described processing unit 602, also for according to described second interface message, pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches in the pressure broadcast table preserved by this node device is updated to broadcast and does not allow to broadcast and forward.
Further, described processing unit 602, also for removing interface corresponding to blocking-up first link.
Wherein, described first link pre-sets or preserves, for the backup link of message transmission.
Further, described processing unit 602, also for obtaining the broadcast domain information of described message.
Now, described processing unit 602, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset.
Concrete, described processing unit 602, also for according to described target MAC (Media Access Control) address information, search the MAC table that this node device is preserved, determine whether to have in the MAC table that this node device preserves and mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of the described message determining to obtain is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that this node device is preserved, determine whether to have in the MAC table that this node device is preserved to mate list item with first of described target MAC (Media Access Control) address information matches.
Embodiments provide a kind of node device, node device is after obtaining the target MAC (Media Access Control) address information of the message received, show according to this target MAC (Media Access Control) address information searching MAC, after determining that in the MAC table that this node device is preserved, existence mates list item with target MAC (Media Access Control) address information to mate first, the outgoing interface information corresponding with this target MAC (Media Access Control) address information is obtained from the first coupling list item, and according to this outgoing interface information, find from the pressure broadcast table that this node device is preserved and mate list item with second of outgoing interface information match.When recording pass-through mode corresponding to this outgoing interface information for allowing broadcast to forward in the second coupling list item, this message is forwarded to other node devices by the mode of broadcast.Like this, the pressure broadcast table that node device is preserved by searching self, when needed message is forwarded to other node devices by broadcast mode, thus can when link failure, in time the mode of message by broadcast is forwarded, reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.And, after respective table entry deletion in the MAC table that this node device is preserved, stop forcing broadcast to forward, thus can make node device after the target MAC (Media Access Control) address information obtaining the message received, search the MAC table that this node device is preserved, if find the first coupling list item in the MAC table that this node device is preserved, then obtain outgoing interface information, forward according to outgoing interface information; If do not find the first coupling list item, then send message by the mode of broadcast, thus ensure that the normal forwarding of message, reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.
Embodiments provide a kind of node device, as shown in Figure 7, comprising:
Receiver 701, for receiving message.
Processor 702, for resolving the message that described receiver 701 receives, obtains the object medium access control mac address information of described message.
It should be noted that, the embodiment of the present invention can be applied in two layers of repeating process of Ethernet Circle.MAC table is stored in each node device.
Whether described processor 702, also for according to described target MAC (Media Access Control) address information, searches the MAC table that this node device is preserved, determine to have in the MAC table that this node device is preserved to mate list item with first of described target MAC (Media Access Control) address information matches.
Described processor 702, also for: have described first coupling list item in the MAC table that this node device preserves if determine, then from described first coupling list item, obtain outgoing interface information.
It should be noted that, described outgoing interface information refers to that this node device forwards the packet the interface message to next-hop node equipment.
Concrete, described processor 702, during specifically for showing at the MAC preserved according to this node device of target MAC (Media Access Control) address information searching of the message received, if have in determining the MAC table that this node device is preserved and mate list item with first of target MAC (Media Access Control) address information match, then can obtain outgoing interface information from the content of the first coupling list item record.
Described processor 702, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that this node device is preserved.
It should be noted that, force broadcast table to be that node device pre-sets or preserves, have recorded interface message and whether pass-through mode corresponding to this interface message is broadcast pass-through mode.
Concrete, described processor 702 specifically for, after the MAC table preserved by this node device gets outgoing interface information, can with this outgoing interface information for keyword, search the interface message recorded in each list item of the pressure broadcast table that this node device is preserved, determine the list item that whether there is outgoing interface information match therewith in the pressure broadcast table that this node device is preserved, thus can determine whether pass-through mode corresponding to the outgoing interface information that records in this list item is broadcast pass-through mode, namely, the second coupling list item is determined whether there is in the pressure broadcast table that this node device is preserved.
It should be noted that, in node device, in the MAC table that this node device is preserved, the interface message of record, all has record in pressure broadcast table.
Transmitter 703, when recording pass-through mode corresponding to outgoing interface information for allowing broadcast to forward for determining at described processor 702 in described second coupling list item, by the mode of broadcast, forwards described message.
Further, described transmitter 703, time also for determining do not have described first coupling list item in the MAC table that this node device described is preserved at described processor 702, by the mode of broadcast, forwards described message.
Further, described transmitter 703, also for determining that at described processor 702 recording pass-through mode corresponding to outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to this outgoing interface information, forward described message.
Further, when the link failure that described node device is direct-connected, described processor 702, also for when detecting with the link failure that described node device is direct-connected, blocks the first interface of this node device corresponding to described faulty link.
Described transmitter 703, also sends Signal Fail message for the node device corresponding to non-faulting link.
Described processor 702, also for the first interface information according to described first interface, pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in the pressure broadcast table preserved by this node device is updated to allow to broadcast and forwards.
Further, described processor 702, also for according to described first interface information, in the MAC table preserved by this node device, the list item corresponding with described first interface information is deleted.
Described processor 702, also for according to described first interface information, pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in the pressure broadcast table preserved by this node device is updated to not allow to broadcast and forwards.
Further, described processor 702, also for obtaining the broadcast domain information of described message.
Now, whether described processor 702 is also identical with the broadcast domain information preset for determining the broadcast domain information of the described message obtained.
Concrete, described processor 702, also for according to described target MAC (Media Access Control) address information, search the MAC table that this node device is preserved, determine whether to have in the MAC table that this node device preserves and mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that this node device is preserved, determine whether to have in the MAC table that this node device is preserved to mate list item with first of described target MAC (Media Access Control) address information matches.
Embodiments provide a kind of node device, node device is after obtaining the target MAC (Media Access Control) address information of the message received, according to the MAC table that this this node device of target MAC (Media Access Control) address information searching is preserved, when determining that in the MAC table that this node device is preserved, existence mates list item with target MAC (Media Access Control) address information to mate first, outgoing interface information is obtained from the first coupling list item, and according to this outgoing interface information, find from the pressure broadcast table that this node device is preserved and mate list item with second of this outgoing interface information match.When recording pass-through mode corresponding to this outgoing interface information for allowing broadcast to forward in the second coupling list item, message is forwarded to other node devices by the mode of broadcast.Like this, the pressure broadcast table that node device is preserved by searching this node device, when needed message is forwarded to other node devices by broadcast mode, thus can when link failure, in time the mode of message by broadcast is forwarded, thus reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.And, after respective table entry deletion in the MAC table that this node device is preserved, stop by forcing broadcast to forward, thus node device can be made when obtaining the target MAC (Media Access Control) address information of the message received, search the MAC table that this node device is preserved, if find in the MAC table that this node device is preserved and mate list item with first of the target MAC (Media Access Control) address information matches of the message received, then obtain outgoing interface information, forward according to outgoing interface information; List item is mated with first of the target MAC (Media Access Control) address information matches of the message received if do not find, then by the message that arrives of mode transmission and reception of broadcast, thus ensure that the normal forwarding of message, reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.
Embodiments provide a kind of node device, as shown in Figure 8, comprising:
Receiver 801, for receiving message.
Processor 802, for resolving the message that described receiver 801 receives, obtains the object medium access control mac address information of described message.
It should be noted that, the embodiment of the present invention can be applied in two layers of repeating process of Ethernet Circle.MAC table is stored in each node device.
Whether described processor 802, also for according to described target MAC (Media Access Control) address information, searches the MAC table that this node device is preserved, determine to have in the MAC table that this node device is preserved to mate list item with first of described target MAC (Media Access Control) address information matches.
Described processor 802, also for: have described first coupling list item in the MAC table that this node device preserves if determine, then from described first coupling list item, obtain outgoing interface information.
It should be noted that, described outgoing interface information refers to that this node device forwards the packet the interface message to next-hop node equipment.
Concrete, described processor 802, during specifically for showing at the MAC preserved according to this node device of target MAC (Media Access Control) address information searching of the message received, if have in determining the MAC table that this node device is preserved and mate list item with first of target MAC (Media Access Control) address information match, then can obtain outgoing interface information from the content of the first coupling list item record.
Described processor 802, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that this node device is preserved.
It should be noted that, force broadcast table to be that node device pre-sets or preserves, have recorded interface message and whether pass-through mode corresponding to this interface message is broadcast pass-through mode.
Concrete, described processor 802 specifically for, after the MAC table preserved by this node device gets outgoing interface information, can with this outgoing interface information for keyword, search the interface message recorded in each list item of the pressure broadcast table that this node device is preserved, determine the list item that whether there is outgoing interface information match therewith in the pressure broadcast table that this node device is preserved, thus can determine whether pass-through mode corresponding to the outgoing interface information that records in this list item is broadcast pass-through mode, namely, the second coupling list item is determined whether there is in the pressure broadcast table that this node device is preserved.
It should be noted that, in node device, in the MAC table that this node device is preserved, the interface message of record, all has record in pressure broadcast table.
Transmitter 803, when recording pass-through mode corresponding to outgoing interface information for allowing broadcast to forward for determining at described processor 702 in described second coupling list item, by the mode of broadcast, forwards described message.
Further, described transmitter 803, time also for determining do not have described first coupling list item in the MAC table that this node device described is preserved at described processor 802, by the mode of broadcast, forwards described message.
Further, described transmitter 803, also for determining that at described processor 802 recording pass-through mode corresponding to outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to this outgoing interface information, forward described message.
Further, do not break down in all links that node device is direct-connected, and during the direct-connected link occurs fault of other node devices in loop,
Described receiver 801, also for receiving the Signal Fail message that the node device direct-connected with faulty link sends.
Described processor 802, also for according to described Signal Fail message, determines the second interface corresponding with described Signal Fail message on described node device; And according to the second interface message of described second interface, pass-through mode corresponding with the second interface message recorded in the list item that this second interface message matches in the pressure broadcast table preserved by this node device is updated to allow to broadcast and forwards.
Further, described processor 802, also for according to described second interface message, deletes the list item matched with described second interface message in described MAC table.
Described processor 802, also for according to described second interface message, pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches in the pressure broadcast table preserved by this node device is updated to broadcast and does not allow to broadcast and forward.
Further, described processor 802, also for removing interface corresponding to blocking-up first link.
Wherein, described first link pre-sets or preserves, for the backup link of message transmission.
Further, described processor 802, also for obtaining the broadcast domain information of described message.
Now, described processor 802, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset.
Concrete, described processor 802, also for according to described target MAC (Media Access Control) address information, search the MAC table that this node device is preserved, determine whether to have in the MAC table that this node device preserves and mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of the described message determining to obtain is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that this node device is preserved, determine whether to have in the MAC table that this node device is preserved to mate list item with first of described target MAC (Media Access Control) address information matches.
Embodiments provide a kind of node device, node device is after obtaining the target MAC (Media Access Control) address information of the message received, show according to this target MAC (Media Access Control) address information searching MAC, after determining that in the MAC table that this node device is preserved, existence mates list item with target MAC (Media Access Control) address information to mate first, the outgoing interface information corresponding with this target MAC (Media Access Control) address information is obtained from the first coupling list item, and according to this outgoing interface information, find from the pressure broadcast table that this node device is preserved and mate list item with second of outgoing interface information match.When recording pass-through mode corresponding to this outgoing interface information for allowing broadcast to forward in the second coupling list item, this message is forwarded to other node devices by the mode of broadcast.Like this, the pressure broadcast table that node device is preserved by searching self, when needed message is forwarded to other node devices by broadcast mode, thus can when link failure, in time the mode of message by broadcast is forwarded, reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.And, after respective table entry deletion in the MAC table that this node device is preserved, stop forcing broadcast to forward, thus can make node device after the target MAC (Media Access Control) address information obtaining the message received, search the MAC table that this node device is preserved, if find the first coupling list item in the MAC table that this node device is preserved, then obtain outgoing interface information, forward according to outgoing interface information; If do not find the first coupling list item, then send message by the mode of broadcast, thus ensure that the normal forwarding of message, reduce the packet loss phenomenon of message repeating process, improve the quality of Ethernet Circle message repeating.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit comprises, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that hardware also can be adopted to add SFU software functional unit realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprises the part steps of some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, be called for short ROM), random access memory (Random Access Memory, be called for short RAM), magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (35)

1. a method for message repeating, is characterized in that, comprising:
First node equipment receives message, obtains the object medium access control mac address information of described message;
Whether this first node equipment, according to described target MAC (Media Access Control) address information, searches the MAC table that this first node equipment is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches;
Have described first coupling list item during described MAC shows if determine, then this first node equipment obtains outgoing interface information from described first coupling list item;
This first node equipment, according to described outgoing interface information, is determined and is mated list item with second of described outgoing interface information match from the pressure broadcast table that this first node equipment is preserved;
If record pass-through mode corresponding to described outgoing interface information in described second coupling list item to forward for allowing broadcast, then this first node equipment is by the mode of broadcast, forwards described message.
2. method according to claim 1, is characterized in that, also comprises:
Do not have described first coupling list item during described MAC shows if determine, then this first node equipment is by the mode of broadcast, forwards described message.
3. method according to claim 1 and 2, is characterized in that, also comprises:
If record pass-through mode corresponding to described outgoing interface information in described second coupling list item to forward for not allowing broadcast, then this first node equipment is according to described outgoing interface information, forwards described message.
4., according to described method arbitrary in claim 1-3, it is characterized in that, receive message at described first node equipment, before obtaining the target MAC (Media Access Control) address information of described message, also comprise:
When detecting with the link failure that this first node equipment is direct-connected, the first interface of this first node equipment that faulty link is corresponding described in this first node devices block;
This first node equipment sends Signal Fail message to the node device that non-faulting link is corresponding;
Pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table, according to the first interface information of described first interface, is updated to allow to broadcast and forwards by this first node equipment.
5. method according to claim 4, it is characterized in that, in the first interface information of this first node equipment according to described first interface, pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table is updated to after allowing to broadcast and forwarding, also comprises:
The list item corresponding with described first interface information in described MAC table, according to described first interface information, is deleted by this first node equipment;
Pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table, according to described first interface information, is updated to not allow to broadcast and forwards by this first node equipment.
6., according to described method arbitrary in claim 1-3, it is characterized in that, also comprise:
This first node equipment receives the Signal Fail message that the Section Point equipment direct-connected with faulty link sends;
This first node equipment, according to described Signal Fail message, determines the second interface corresponding with described Signal Fail message on this first node equipment; And according to the second interface message of described second interface, in the described pressure broadcast table preserve this first node equipment, the pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches is updated to allow to broadcast and forwards.
7. method according to claim 6, it is characterized in that, in described the second interface message according to described second interface, the content update recorded in the list item matched with described second interface message in the described pressure broadcast table preserve this first node equipment, for after allowing to broadcast and forwarding, also comprises:
The list item matched with described second interface message in described MAC table, according to described second interface message, is deleted by this first node equipment;
Pass-through mode corresponding with the second interface message recorded in the list item that the interface message of described second matches in described pressure broadcast table, according to described second interface message, is updated to broadcast and does not allow to broadcast and forward by this first node equipment.
8. the method according to claim 6 or 7, is characterized in that, after the Signal Fail message that the Section Point equipment that this first node equipment described receives and faulty link is direct-connected sends, also comprises:
This first node equipment is removed and is blocked interface corresponding to described first link; Described first link pre-sets, for the backup link of message transmission.
9., according to described method arbitrary in claim 1-8, it is characterized in that,
At this first node equipment described according to described target MAC (Media Access Control) address information, search the MAC table that this first node equipment is preserved, before determining whether to have during described MAC shows and mating list item with first of described target MAC (Media Access Control) address information matches, also comprise:
This first node equipment obtains the broadcast domain information of described message;
Whether the broadcast domain information of the described message that this first node equipment Inspection obtains is identical with the broadcast domain information preset;
Whether this first node equipment described, according to described target MAC (Media Access Control) address information, searches the MAC table that this first node equipment is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches and comprise:
This first node equipment is when the broadcast domain information of described message acquisition being detected is identical with the broadcast domain information preset, according to described target MAC (Media Access Control) address information, search the MAC table that this first node equipment is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
10. a node device, is characterized in that, comprising:
Receiving element, for receiving message;
Processing unit, for the object medium access control mac address information of message received described in obtaining;
Whether described processing unit, also for according to described target MAC (Media Access Control) address information, searches the MAC table that described node device is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches;
Described processing unit, if also have described first coupling list item for determining during described MAC shows, then obtains outgoing interface information from described first coupling list item;
Described processing unit, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that described node device is preserved;
Transmitting element, when recording pass-through mode corresponding to described outgoing interface information for allowing broadcast to forward for determining at described processing unit in described second coupling list item, by the mode of broadcast, forwards described message.
11. node devices according to claim 10, is characterized in that,
Described transmitting element, also for determine at described processing unit described MAC show in do not have described first coupling list item time, by broadcast mode, forward described message.
12. node devices according to claim 10 or 11, is characterized in that,
Described transmitting element, also for determining that at described processing unit recording pass-through mode corresponding to described outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to described outgoing interface information, forward described message.
13., according to described node device arbitrary in claim 10-12, is characterized in that,
Described processing unit, also for when detecting with the link failure that described node device is direct-connected, blocks the first interface of described node device corresponding to described faulty link;
Described transmitting element, also sends Signal Fail message for the node device corresponding to non-faulting link;
Described processing unit, also for the first interface information according to described first interface, is updated to allow to broadcast by pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table and forwards.
14. node devices according to claim 13, is characterized in that,
Described processing unit, also for according to described first interface information, deletes the list item corresponding with described first interface information in described MAC table;
Described process all unit, also for according to described first interface information, are updated to not allow to broadcast by pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table and forward.
15., according to described node device arbitrary in claim 10-14, is characterized in that,
Described processing unit, also for obtaining the broadcast domain information of described message;
Described processing unit, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset;
Described processing unit, also for according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
16. 1 kinds of node devices, is characterized in that, comprising:
Receiving element, for receiving message;
Processing unit, for the object medium access control mac address information of message received described in obtaining;
Whether described processing unit, also for according to described target MAC (Media Access Control) address information, searches the MAC table that described node device is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches;
Described processing unit, if also have described first coupling list item for determining during described MAC shows, then obtains outgoing interface information from described first coupling list item;
Described processing unit, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that described node device is preserved;
Transmitting element, when recording pass-through mode corresponding to described outgoing interface information for allowing broadcast to forward for determining at described processing unit in described second coupling list item, by the mode of broadcast, forwards described message.
17. node devices according to claim 16, is characterized in that,
Described transmitting element, also for determine at described processing unit described MAC show in do not have described first coupling list item time, by broadcast mode, forward described message.
18. node devices according to claim 16 or 17, is characterized in that,
Described transmitting element, also for determining that at described processing unit recording pass-through mode corresponding to described outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to described outgoing interface information, forward described message.
19., according to described node device arbitrary in claim 16-18, is characterized in that,
Described receiving element, also for receiving the Signal Fail message that the node device direct-connected with faulty link sends;
Described processing unit, also for according to described Signal Fail message, determines the second interface corresponding with described Signal Fail message on described node device; And according to the second interface message of described second interface, in the described pressure broadcast table preserved by described node device, the pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches is updated to allow to broadcast and forwards.
20. node devices according to claim 19, is characterized in that,
Described processing unit, also for according to described second interface message, deletes the list item matched with described second interface message in described MAC table;
Described processing unit, also for according to described second interface message, is updated to broadcast and does not allow to broadcast and forward by pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches in described pressure broadcast table.
21. node devices according to claim 19 or 20, is characterized in that,
Described processing unit, also blocks interface corresponding to described first link for removing; Described first link pre-sets, for the backup link of message transmission.
22., according to described node device arbitrary in claim 16-21, is characterized in that,
Described processing unit, also for obtaining the broadcast domain information of described message;
Described processing unit, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset;
Described processing unit, also for according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
23. 1 kinds of node devices, is characterized in that, comprising:
Receiver, for receiving message;
Processor, for resolving the described message that described receiver receives, obtains the object medium access control mac address information of described message;
Whether described processor, also for according to described target MAC (Media Access Control) address information, searches the MAC table that described node device is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches;
Described processor, if also have described first coupling list item for determining during described MAC shows, then obtains outgoing interface information from described first coupling list item;
Described processor, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that described node device is preserved;
Transmitter, when recording pass-through mode corresponding to described outgoing interface information for allowing broadcast to forward for determining at described processor in described second coupling list item, by the mode of broadcast, forwards described message.
24. node devices according to claim 23, is characterized in that,
Described transmitter, also for determine at described processor described MAC show in do not have described first coupling list item time, by broadcast mode, forward described message.
25. node devices according to claim 23 or 24, is characterized in that,
Described transmitter, also for determining that at described processor recording pass-through mode corresponding to described outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to described outgoing interface information, forward described message.
26., according to described node device arbitrary in claim 23-25, is characterized in that,
Described processor, also for when detecting with the link failure that described node device is direct-connected, blocks the first interface of described node device corresponding to described faulty link;
Described transmitter, also sends Signal Fail message for the node device corresponding to non-faulting link;
Described processor, also for the first interface information according to described first interface, is updated to allow to broadcast by pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table and forwards.
27. node devices according to claim 26, is characterized in that,
Described processor, also for according to described first interface information, deletes the list item corresponding with described first interface information in described MAC table;
Described processor, also for according to described first interface information, is updated to not allow to broadcast by pass-through mode corresponding with the first interface information recorded in the list item of described first interface information match in described pressure broadcast table and forwards.
28., according to described node device arbitrary in claim 23-27, is characterized in that,
Described processor, also for obtaining the broadcast domain information of described message;
Described processor, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset;
Described processor, also for according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
29. 1 kinds of node devices, is characterized in that, comprising:
Receiver, for receiving message;
Processor, for resolving the described message that described receiver receives, obtains the object medium access control mac address information of described message;
Whether described processor, also for according to described target MAC (Media Access Control) address information, searches the MAC table that described node device is preserved, determine to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches;
Described processor, if also have described first coupling list item for determining during described MAC shows, then obtains outgoing interface information from described first coupling list item;
Described processor, also for according to described outgoing interface information, determines and mates list item with second of described outgoing interface information match from the pressure broadcast table that described node device is preserved;
Transmitter, when recording pass-through mode corresponding to described outgoing interface information for allowing broadcast to forward for determining at described processor in described second coupling list item, by the mode of broadcast, forwards described message.
30. node devices according to claim 29, is characterized in that,
Described transmitter, also for determine at described processor described MAC show in do not have described first coupling list item time, by broadcast mode, forward described message.
31. node devices according to claim 29 or 30, is characterized in that,
Described transmitter, also for determining that at described processor recording pass-through mode corresponding to described outgoing interface information in described second coupling list item forwards for not allowing broadcast, then according to described outgoing interface information, forward described message.
32., according to described node device arbitrary in claim 29-31, is characterized in that,
Described receiver, also for receiving the Signal Fail message that the Section Point equipment direct-connected with faulty link sends;
Described processor, also for according to described Signal Fail message, determines the second interface corresponding with described Signal Fail message on described node device; And according to the second interface message of described second interface, in the described pressure broadcast table preserved by described node device, the pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches is updated to allow to broadcast and forwards.
33. node devices according to claim 32, is characterized in that,
Described processor, also for according to described second interface message, deletes the list item matched with described second interface message in described MAC table;
Described processor, also for according to described second interface message, is updated to broadcast and does not allow to broadcast and forward by pass-through mode corresponding with the second interface message recorded in the list item that described second interface message matches in described pressure broadcast table.
34. node devices according to claim 32 or 33, is characterized in that,
Described processor, also blocks interface corresponding to described first link for removing; Described first link pre-sets, for the backup link of message transmission.
35., according to described node device arbitrary in claim 29-34, is characterized in that,
Described processor, also for obtaining the broadcast domain information of described message;
Described processor, whether the broadcast domain information also for detecting the described message of acquisition is identical with the broadcast domain information preset;
Described processor, also for according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows mate list item with first of described target MAC (Media Access Control) address information matches and be specially: when the broadcast domain information of described message acquisition being detected is identical with default broadcast domain information, according to described target MAC (Media Access Control) address information, search the MAC table that described node device is preserved, determine whether to have during described MAC shows to mate list item with first of described target MAC (Media Access Control) address information matches.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106936731A (en) * 2015-12-31 2017-07-07 北京华为数字技术有限公司 The method and apparatus of the message forwarding in software defined network SDN
CN109450819A (en) * 2018-10-25 2019-03-08 锐捷网络股份有限公司 A kind of retransmission method and system of broadcasting packet
WO2021164258A1 (en) * 2020-02-21 2021-08-26 华为技术有限公司 Method for generating forwarding entry, method for sending message, network device, and system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080205397A1 (en) * 2005-09-07 2008-08-28 Huawei Technologies Co., Ltd. Method for forwarding multicast packets in a virtual private local area network service
CN102404179A (en) * 2010-09-19 2012-04-04 杭州华三通信技术有限公司 Method and device for processing message
CN102420768A (en) * 2011-12-15 2012-04-18 北京星网锐捷网络技术有限公司 Link switching method and device, data transmission method and device, and network equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080205397A1 (en) * 2005-09-07 2008-08-28 Huawei Technologies Co., Ltd. Method for forwarding multicast packets in a virtual private local area network service
CN102404179A (en) * 2010-09-19 2012-04-04 杭州华三通信技术有限公司 Method and device for processing message
CN102420768A (en) * 2011-12-15 2012-04-18 北京星网锐捷网络技术有限公司 Link switching method and device, data transmission method and device, and network equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106936731A (en) * 2015-12-31 2017-07-07 北京华为数字技术有限公司 The method and apparatus of the message forwarding in software defined network SDN
CN109450819A (en) * 2018-10-25 2019-03-08 锐捷网络股份有限公司 A kind of retransmission method and system of broadcasting packet
CN109450819B (en) * 2018-10-25 2021-08-17 锐捷网络股份有限公司 Method and system for forwarding broadcast message
WO2021164258A1 (en) * 2020-02-21 2021-08-26 华为技术有限公司 Method for generating forwarding entry, method for sending message, network device, and system

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Application publication date: 20150318