CN100461741C - A method and communication equipment for protecting the Ethernet link collective logic port message against loss - Google Patents
A method and communication equipment for protecting the Ethernet link collective logic port message against loss Download PDFInfo
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- CN100461741C CN100461741C CNB2006100274952A CN200610027495A CN100461741C CN 100461741 C CN100461741 C CN 100461741C CN B2006100274952 A CNB2006100274952 A CN B2006100274952A CN 200610027495 A CN200610027495 A CN 200610027495A CN 100461741 C CN100461741 C CN 100461741C
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Abstract
The disclosed method for preventing message missing on Eth-trunk logic port comprises: when creating Ethernet link convergence logic port, distributing a pre-set MAC address, such as the Telnet port MAC address or fixed MAC address; when the port has bonded or wants to bond a physical port, it holds the logic port MAC address. When the main board of attributive device fails, the port created by the standby board has same MAC address as the original one.
Description
Technical field
The present invention relates to the communications field, particularly use the communication technology of Ethernet link clustering logic port.
Background technology
Current, no matter at enterprise network, campus network still on wide area network such as internet (Internet), the development of traffic carrying capacity has all exceeded in the past the most optimistic estimation, the network user is soared, applied business emerges in an endless stream.Make resources such as current network facility can't satisfy the user's request of sharp increase.Especially network core part, its data traffic and calculating strength are big, make single equipment to bear.So, how finishing rational traffic carrying capacity distribution of realization and work compound between a plurality of network equipments of said function, increase network capacity, can keep each equipment equilibrium operating simultaneously, just become one of key technology.Therefore load-balancing mechanism also arises at the historic moment.
Load-balancing mechanism is on existing network infrastructure, a kind of cheap effective method expansion servers bandwidth is provided and has increased throughput, strengthens the network data-handling capacity, improves network more flexible and availability.It mainly finishes following task: solve the network congestion problem, service provides nearby, realizes the geographical position independence; For the user provides better visit quality; Improve speed of response of server; Improve server and other efficiency of resource; Avoided the network key position single point failure to occur.According to load-balancing mechanism place network layer can ports having polymerization (Trunk), network exchange and three kinds of technology of server cluster.
Wherein, Trunk provides a kind of mechanism of port trunking, and it can be combined the connection of several low speed, forms the connection of a high speed.For example use the Trunk technology to concentrate in together the connection that forms 800mbps four full duplex 200mbps fast ethernet ports, these several ports can be used as a port and treat.The Trunk technology is bundled into a logic port with a plurality of physical ports and uses, the user can only be configured logic port, realize various Routing Protocols and carry out multi protocol label exchange (MultiProtocol Label Switching, be called for short " MPLS ")/Virtual Private Network business such as (Virtual PrivateNetworking are called for short " VPN ").Be tied to the member that together physical port is called Trunk, all configurations to the Trunk logic port finally all can change into the configuration to Trunk member.Trunk can be divided into three layers of binding and two layers of binding, and two layers of present binding are used has Ethernet link clustering (Ethernet Trunk is called for short " Eth-trunk ")
Why Eth-trunk is called as two layers of binding technology, be because whole Eth-trunk has only a unique MAC Address, it is the MAC Address of Eth-trunk logic port, all MAC Address that are tied to the Eth-trunk member among the Eth-trunk will be consistent with the MAC Address of its Eth-trunk logic port, equally, Eth-trunk member's IP address also will be consistent with the IP address of its Eth-trunk logic port, promptly in the process of message transmissions, for transmit leg, an Eth-trunk has only the IP address of a correspondence, it is the IP address of its logic port, after the logic port of recipient Eth-trunk is received message, IP address according to its Eth-trunk member is issued to corresponding physical port with message.That is to say, Eth-trunk member, promptly the IP address of the physical port that comprises of this Eth-trunk is not genuine identical with the IP address of logic port, and the IP address of just using logic port.
The constructive process of Eth-trunk is at first created a logic port by router one 10, and the MAC Address of this logic port is initialized as sky as shown in Figure 1.Then, physical port 111 is tied to this logic port, physical port 111 is as the physical port of first binding logic port, and the MAC Address of logic port promptly is set to the port mac address of physical port 111.Afterwards, again physical port 112,113 is tied to this logic port, and is the MAC Address of logic port synchronously the MAC Address of physical port 112 and 113, i.e. the MAC Address of physical port 111, Eth-trunk creates and finishes.If afterwards, physical port 111 will break away from this Eth-trunk, then physical port 111 is unbinded from this logic port, and the MAC of logic port is updated to another Eth-trunk member, physical port 112 or 113 MAC Address.
In actual applications, such scheme exists the logic port MAC Address of following problem: Eth-trunk to fix, and is easy to generate the packet loss phenomenon, and professional reliability can not get guaranteeing.
Cause the main cause of this situation to be, in the prior art, the MAC Address of the logic interface of Eth-trunk directly is configured to the member of this Eth-trunk, it is the MAC Address of physical port, when this Eth-trunk member unbinds from logic port, when from its logic port, unbinding, the MAC of logic port need be updated to the MAC Address with other physical ports of this logic port binding as physical port 111, thus MAC Address that can't the fixed logic port.The frequent binding of physical port/unbind can directly influence the frequent variations of logic port MAC Address, is not easy to maintenance management, and the MAC Address of logic port is fixing, can cause when MAC Address changes generation packet loss phenomenon.As when router one 20 by logic port when router one 10 E-Packets, the target MAC (Media Access Control) address that message is filled is the MAC Address of the logic port of router one 10, yet because the MAC Address of the logic port of router one 10 changes, after router one 10 is received this message, may be because the target MAC (Media Access Control) address logic port MAC Address current with it in the message be inconsistent, and dropping packets makes that professional reliability can not get guaranteeing.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and communication equipment that prevents Ethernet link clustering logic port message dropping, makes can avoid losing by the message of Eth-trunk logic port transmission.
For achieving the above object, the invention provides a kind of method that prevents Ethernet link clustering logic port message dropping, comprise following steps:
When creating the Ethernet link clustering logic port, be the media access control layer address that this logic port configuration is preset, the physical port of described media access control layer address of presetting and the binding of described logic port is irrelevant;
Described logic port binding or when unbinding physical port, the media access control layer address of keeping this logic port is constant.
Wherein, the media access control layer address that is the telnet port of described logic port corresponding device, described media access control layer address of presetting.
In this external described method, described media access control layer address of presetting is predefined fixed medium access control layer address.
In this external described method, when the main board failure of described logic port corresponding device, the identical media access control layer address of Ethernet link clustering logic port that the Ethernet link clustering logic port that the slave board of this equipment is created uses and this mainboard is created.
In this external described method, described slave board is by preserving described media access control layer address of presetting, obtain the identical media access control layer address of Ethernet link clustering logic port of creating with this mainboard.
In this external described method, described equipment is router.
The present invention also provides a kind of communication equipment, comprises the Ethernet link clustering logic port, also comprises:
When creating the Ethernet link clustering logic port, for this logic port disposes the device of the media access control layer address of presetting, the physical port of described media access control layer address of presetting and the binding of described logic port is irrelevant;
The constant device in media access control layer address of this logic port is kept in described logic port binding or when unbinding physical port.
Wherein, when containing the main board failure of described logic port, on slave board, create the device of logic port with the media access control layer address identical with logic port on this mainboard.
In addition, described media access control layer address of presetting is the media access control layer address of the telnet port of described logic port corresponding device, or predefined fixed medium access control layer address.
In addition, described communication equipment is a router.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, when creating the Eth-trunk logic port, dispose the MAC Address that presets for this logic port, MAC Address or fixed MAC address as Telnet (Telnet) port of this logic port corresponding device, when this logic port was bound or unbinded physical port, it was constant to keep the current MAC Address of this logic port.Because the logic port MAC Address of being joined is irrelevant with the physical port of being bound, so when binding or unbinding physical port, can revise the MAC Address of logic port, thereby lose message because of the variation of MAC Address when having guaranteed that this logic port can or not unbind physical port in binding, guarantee the reliability and the fluency of every business.
When the mainboard of Eth-trunk logic port corresponding device breaks down, take over the Eth-trunk logic port that the slave board of this mainboard work creates and still use the identical MAC Address of creating with this mainboard of Eth-trunk logic port, what further prevented to E-Packet loses, and has guaranteed the reliability and the fluency of every business.
Description of drawings
Fig. 1 is a schematic diagram of creating Eth-trunk in the prior art;
Fig. 2 is the schematic diagram that the present invention prevents Eth-trunk logic port message dropping method;
Fig. 3 is the router topology schematic diagram that prevents Eth-trunk logic port message dropping method according to first embodiment of the invention;
Fig. 4 is the flow chart that message is transmitted in the Eth-trunk logic port message dropping method that prevents according to first embodiment of the invention;
Fig. 5 is the structural representation that message is transmitted in the Eth-trunk logic port message dropping method that prevents according to first embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Core of the present invention is, router is when creating the Eth-trunk logic port, dispose the MAC Address that presets for this logic port, MAC Address or other fixed MAC address as the Telnet port that its MAC Address is configured to this logic port corresponding device, when this logic port is bound or is unbinded physical port, it is constant to keep the current MAC Address of this logic port, make this logic port when binding and unbinding physical port, do not change the MAC Address of this logic port, the message dropping of having avoided the change because of MAC Address to produce.
Below inventive principle of the present invention is described.
As shown in Figure 2, in step 210, router is created the Eth-trunk logic port, disposes the MAC Address that presets for this logic port, the MAC Address of the Telnet port that this MAC Address that presets can be this logic port corresponding device, perhaps other predefined fixedly MAC Address.Such as, when router is created logic port, directly obtain the MAC Address of the Telnet port of this equipment, with the MAC Address of this MAC Address as the new logic port of creating to the equipment control of this logic port corresponding device.
Then enter step 220, router is tied to the logic port of this Eth-trunk one by one with each physical port, makes it to become the member of this Eth-trunk.The MAC Address of the physical port after the binding is the MAC Address of this logic port synchronously.Equally, wish when this Eth-trunk separates at the physical port that is tied to this Eth-trunk, this physical port its logic port that unbinds, the MAC Address of the physical port after unbinding are reduced to its MAC Address originally, and the logic port MAC Address of the back Eth-trunk that unbinds is constant.
According to inventive principle first embodiment of the invention is prevented that the method for Eth-trunk logic port message dropping from describing below.
It is as follows that router is created the Eth-trunk flow process:
Router is operated by terminal configuration and is that Eth-trunk creates logic port.Because logic port is identical with physical port to need MAC Address to support data forwarding, so router is necessary for the logic port distribution fixed MAC address of establishment.Usually, router adopts the MAC Address of the device mac address of system as logic port, the port mac address of promptly adopting the Telnet mouth of equipment.Because device mac address safeguarded by equipment control, so router is Eth-trunk when creating logic port, can directly obtain device mac address to equipment control, these MAC data is kept in the data message structure of logic port of establishment.
In addition, the master control borad of router also need be preserved other logic port data messages that comprise logic port IP address, logic port mark at least, and this data message and the routing iinformation that comprises logic port IP address be handed down to all wiring boards on the throne, as shown in Figure 3, each wiring board on the throne is created same logic port, data message that preservation is received and routing iinformation, each wiring board on the throne will be stored in from the route information table of master control borad in the routing information base (FIB) of self.
Router need be bound this logic port one by one with physical port after creating logic port for Eth-trunk, make it to become the member of this Eth-trunk.
Specifically, because the inreal bearing message of logic port is transmitted, final message is still transmitted from physical port, therefore need be to the actual physics port of its binding with the data sync of logic port, and be the MAC Address of the logic port bound synchronously with the MAC Address of physical port.Such as shown in Figure 1, router one 10 comprises three physical ports, is respectively physical port 111,112 and 113, and wishes that these three physical ports become the Eth-trunk member who is created.Router is being created logic port and is being this logic port distribution fixedly after the MAC Address for Eth-trunk, one by one physical port 111,112 and 113 is tied to the logic port of this establishment, and is the MAC Address of this logic port synchronously with the MAC Address of these three physical ports respectively.
And, other logic port data messages that comprise logic port IP address, logic port mark that master control borad will be preserved, and the routing iinformation that comprises logic port IP address is handed down to all wiring boards on the throne.
Wiring board is preserved data message and the routing iinformation of receiving, the routing iinformation of the physical port of this logic port binding that deletion is preserved.
The physical port that has been tied to its logic port among the Eth-trunk is when hope separates with this Eth-trunk, its logic port can unbind, the MAC Address of the physical port after unbinding is reduced to the MAC Address before its binding, the i.e. MAC Address of this physical port self, the MAC Address of the logic port of this Eth-trunk remains unchanged.Even member's (physical port) that this Eth-trunk is all, its logic port that all unbinds, the MAC Address of this logic port still remains unchanged.Thereby lose message because of the variation of MAC Address when having guaranteed that this logic port can or not unbind physical port in binding, guarantee the reliability and the fluency of every business.
Concrete message forwarding process as shown in Figure 4, in step 410, the destination address of router reading of data message is searched the pairing outbound port IP of this destination address address.Specifically, as shown in Figure 5, when the wiring board 515 of router five 10 is received data message by self physical port, encapsulating structure according to message, read the destination address in this data message, as shown in table 1, and in the FIB that self stores, search the pairing outbound port IP of this destination address address.
| Destination address | Source address | Type | Data | CRC |
Table 1
Then enter step 420, judge whether the pairing outbound port in IP address that finds is the Eth-trunk logic port of creating.Specifically, wiring board 515 self the storage be used for the data message that the port with IP address is described is searched the logic port mark, if find the logic port mark, judge that then this outbound port is the logic port of its establishment, enters step 440; Otherwise, judge that then this outbound port is not the logic port that this wiring board is created, enter step 430, do other processing (NOT logic mouth handling process, same as the prior art, be not described further).
In step 440, select a physical port, data message is sent by this physical port.Specifically, wiring board 515 is after judging that this outbound port is logic port, wiring board 515 is searched corresponding physical Port IP address, this logic port IP address in the physical port membership table of self storing, and from a plurality of physical port IP address of finding, select an IP address, data message is sent by this IP address corresponding physical port.Promptly from a plurality of physical ports of this logic port binding, select a physical port, data message is sent by this physical port.Wiring board 515 can be used modes such as polling or Hash HASH and select physical port, so that each physical port of this logic port binding can reach the data traffic balance as far as possible.
Second embodiment of the invention prevents that the method for Eth-trunk logic port message dropping and first execution mode are roughly the same, its difference only is, in the present embodiment, when the main board failure of the logic port corresponding device of Eth-trunk, promptly when under the logic port of Eth-trunk during the main circuit board fault, the identical MAC Address of Eth-trunk logic port that the Eth-trunk logic port that the slave board of this main circuit board is created uses and this main circuit board is created.The MAC Address of this slave board by saving presets obtained the identical MAC Address of creating with this main circuit board of Eth-trunk logic port.Specifically, as a security device, the slave board of wiring board can be received the information of backing up in realtime of mainboard in the router, and creates corresponding logic port at slave board.Because slave board is used for replacing original main circuit board when the main circuit board fault, to guarantee that service after switching is unimpeded, therefore in order to keep the consistency of data, the logic port that slave board is created need adopt the MAC Address consistent with main circuit board.Similarly, slave board obtains system's MAC Address by its equipment control, and in order to keep the MAC Address unanimity of the same logic port of active and standby plate, the MAC Address that the equipment control of slave board is preserved is system's MAC Address of mainboard.Promptly when slave board forms, mainboard backups to slave board with system's MAC Address, is kept in the equipment control of slave board, when slave board is created the Eth-trunk logic port, from its equipment control acquisition system MAC Address identical, and this MAC Address is distributed to the logic port of establishment with mainboard.As seen, mainboard is when fault, and the MAC Address of the Eth-trunk logic port that slave board is created is identical with the MAC Address of the Eth-trunk logic port that original mainboard is created.Thereby what further prevented to E-Packet loses, and has guaranteed the reliability and the fluency of every business.
The communication equipment of third embodiment of the invention comprises the Eth-trunk logic port, be used to this logic port to dispose the device 1 of the MAC Address that presets, be used to keep the constant device 2 of MAC Address of this logic port, and the device 3 that is used on slave board, creating the Eth-trunk logic port.
Specifically, router is when creating the Eth-trunk logic port, by installing 1 MAC Address that presets for the configuration of this logic port, the MAC Address of the telnet port that this MAC Address that presets can be the logic port corresponding device, or predefined fixedly MAC Address.When router is bound or is unbinded physical port at this logic port, to keep the MAC Address of this logic port constant by installing 2, and when including the main circuit board fault of this logic port, create the Eth-trunk logic port by installing 3 on slave board, the Eth-trunk logic port of being created on the Eth-trunk logic port of being created and this main circuit board has identical MAC Address.Because the logic port MAC Address of being joined is irrelevant with the physical port of being bound, so when binding or unbinding physical port, can revise the MAC Address of logic port, thereby lose message because of the variation of MAC Address when having guaranteed that this logic port can or not unbind physical port in binding, guarantee the reliability and the fluency of every business.
Said device 1, device 2, device 3 are logical concept in the 3rd execution mode, physically can realize in distinct device, also can realize in same equipment.Device 1, device 2, device 3 can have various titles, as long as but have above-mentioned functions and just can realize effect of the present invention, just belong to protection scope of the present invention.Be appreciated that, related function mainly is MAC Address to be set, to keep MAC Address and to create the Eth-trunk logic port in device 1, device 2, the device 3, these functions all are not difficult to realize by known technology, are that present prior art does not realize purpose of the present invention by the inventive combination of these functions.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. a method that prevents Ethernet link clustering logic port message dropping is characterized in that, comprises following steps:
When creating the Ethernet link clustering logic port, be the media access control layer address that this logic port configuration is preset, the physical port of described media access control layer address of presetting and the binding of described logic port is irrelevant;
Described logic port binding or when unbinding physical port, the media access control layer address of keeping this logic port is constant.
2. the method that prevents Ethernet link clustering logic port message dropping according to claim 1 is characterized in that, described media access control layer address of presetting is the media access control layer address of the telnet port of described logic port corresponding device.
3. the method that prevents Ethernet link clustering logic port message dropping according to claim 1 is characterized in that, described media access control layer address of presetting is predefined fixed medium access control layer address.
4. according to each described method that prevents Ethernet link clustering logic port message dropping in the claim 1 to 3, it is characterized in that, when the main board failure of described logic port corresponding device, the identical media access control layer address of Ethernet link clustering logic port that the Ethernet link clustering logic port that the slave board of this equipment is created uses and this mainboard is created.
5. the method that prevents Ethernet link clustering logic port message dropping according to claim 4, it is characterized in that, described slave board is by preserving described media access control layer address of presetting, obtain the identical media access control layer address of Ethernet link clustering logic port of creating with this mainboard.
6. the method that prevents Ethernet link clustering logic port message dropping according to claim 5 is characterized in that, described equipment is router.
7. a communication equipment comprises the Ethernet link clustering logic port, it is characterized in that, also comprises:
When creating the Ethernet link clustering logic port, for this logic port disposes the device of the media access control layer address of presetting, the physical port of described media access control layer address of presetting and the binding of described logic port is irrelevant;
The constant device in media access control layer address of this logic port is kept in described logic port binding or when unbinding physical port.
8. communication equipment according to claim 7 is characterized in that, when containing the main board failure of described logic port, creates the device of logic port with the media access control layer address identical with logic port on this mainboard on slave board.
9. communication equipment according to claim 7, it is characterized in that, described media access control layer address of presetting is the media access control layer address of the telnet port of described logic port corresponding device, or predefined fixed medium access control layer address.
10. according to each described communication equipment in the claim 7 to 9, it is characterized in that described communication equipment is a router.
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101252532B (en) * | 2008-03-18 | 2010-08-25 | 华为技术有限公司 | Equipment and method for collocating Ethernet link polymerization terminal port |
| CN101252459B (en) * | 2008-03-24 | 2010-12-08 | 中兴通讯股份有限公司 | Method for setting protocol state of chain circuit terminal port and supervising method thereof |
| CN101552725B (en) * | 2009-05-13 | 2011-12-21 | 杭州华三通信技术有限公司 | Recovery processing method, system and apparatus of aggregation sublink |
| CN102065585A (en) * | 2009-11-16 | 2011-05-18 | 中兴通讯股份有限公司 | Method and device for Ethernet access |
| CN102281195B (en) * | 2011-08-03 | 2014-07-30 | 华为技术有限公司 | Switch and switch system |
| US10680848B2 (en) | 2014-01-29 | 2020-06-09 | Hewlett Packard Enterprise Development Lp | Managing a number of ethernet links |
| CN105634769A (en) * | 2014-10-29 | 2016-06-01 | 中兴通讯股份有限公司 | Routing device management method, main master control unit, and line card unit |
| CN106487941A (en) * | 2015-08-31 | 2017-03-08 | 北京华为数字技术有限公司 | A kind of method and apparatus of collocating medium access control address |
| CN107682278A (en) * | 2017-11-23 | 2018-02-09 | 迈普通信技术股份有限公司 | Message forwarding method and device |
| CN109286527B (en) * | 2018-10-10 | 2022-02-22 | 广东信通通信有限公司 | Method for associating switch logic and physical graph ports and network management system |
| CN109600267A (en) * | 2019-01-09 | 2019-04-09 | 郑州云海信息技术有限公司 | A kind of the physical port switching method and device of network link |
| CN112751756B (en) * | 2020-12-25 | 2023-02-28 | 杭州迪普信息技术有限公司 | Data forwarding method, device, equipment and computer readable storage medium |
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