CN101227399A - Message transmission method, system and forwarding node - Google Patents
Message transmission method, system and forwarding node Download PDFInfo
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- CN101227399A CN101227399A CNA2008100068070A CN200810006807A CN101227399A CN 101227399 A CN101227399 A CN 101227399A CN A2008100068070 A CNA2008100068070 A CN A2008100068070A CN 200810006807 A CN200810006807 A CN 200810006807A CN 101227399 A CN101227399 A CN 101227399A
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Abstract
The invention discloses a message transmission method, which comprises leading a forwarding node to receive fault noticing information which is sent by a fault node, and the fault node is a subsequent jumping node of the forwarding node, transmitting the message to the subsequent jumping node of the fault node through the protecting node of the fault node according to a spare forwarding table which is pre-allocated. The invention also discloses a message transmission system and a forwarding node. When the invention is applied, when any forwarding node in an Looped network has faults, and the transmission of an Looped network, tunnel is interrupted, and message can be transmitted through a link circuit which is formed by an upper jumping node, a protecting node and a subsequent node of the forwarding node, thereby achieving sectionalized protection of the forwarding node in the tunnel, improving the flexibility of message transmission when the tunnel is broken, since only fault nodes are protected, thereby non-fault nodes on the tunnel can also be used, and usability of link circuit resource in networks is improved.
Description
Technical field
The present invention relates to network communications technology field, particularly a kind of message transmitting method, system and forward node.
Background technology
Existing Ethernet can be set up the tunnel between source device and destination device when carrying out message transmissions, use this tunnel, makes message be forwarded to destination device from source device by intermediate equipment.With CE (Carrier Ethernet, carrier class Ethernet) is example, and CE can adopt the PBB-TE tunnel to carry out message and transmit, and message is transmitted based on Mac-in-Mac (MAC Address is nested) encapsulation technology, and forward-path is set up by the method for static configuration.The source device in PBB-TE tunnel inserts B-DA (Backbone Destination MAC Address in heading, the backbone network target MAC (Media Access Control) address) territory, B-SA (Backbone Source MAC Address, the backbone network source MAC) territory, B-VLAN (Backbone VLAN, the backbone network VLAN) and I-TAG (Service Instance TAG, Service Instance mark).Dispose MAC (Media Access Control on the intermediate equipment in the network between source device and the destination device, medium access control) forwarding-table item, message is transmitted according to forwarding-table item on intermediate equipment, and above-mentioned forward-path is equivalent to set up the tunnel of message transmission between source device and destination device.
Be illustrated in figure 1 as the structural representation in PBB-TE tunnel in the prior art; wherein PE1 is source device (MAC Address is B-MAC1); PE2 is destination device (MAC Address is B-MAC2); P1 to P6 is the intermediate equipment that is used to E-Packet; between PE1 and PE2, comprise two tunnels; wherein main is from PE1 with the tunnel; through P1; P2; the forward-path of P3 to PE2; over run tunnel is from PE1; through P4; P5; the forward-path of P6 to PE2 is distinguished above-mentioned two tunnels in order to E-Packet, and when pre-configured is mainly to specify B-VLAN1 with the tunnel; over run tunnel is specified B-VLAN2, makes the master; be equipped with and form the protection group between two tunnels.In conjunction with Fig. 1, before carrying out message transmissions, need carry out static configuration to all devices of PBB-TE tunnel-associated, the content of configuration comprises: create the tunnel entity on PE1 and PE2, be main with tunnel configuration B-MAC1, B-MAC2, B-VLAN1, be over run tunnel configuration B-MAC1, B-MAC2, B-VLAN2, and indicate the outbound port on tunnel PE1 and the PE2; The forwarding-table item of configuration association B-MAC1, B-MAC2, B-VLAN1 during MAC on P1, P2, P3 transmits, the forwarding-table item of configuration association B-MAC1, B-MAC2, B-VLAN2 during the MAC on P4, P5, P6 transmits.Message acquiescence between PE1 and the PE2 is transmitted on leading with the tunnel, when therefore message being carried out the MAC Address encapsulation, insert B-MAC1, B-MAC2 and B-VLAN1 in heading, the message after the encapsulation can be transferred to PE2 from PE1 according to main MAC forwarding-table item with tunnel P1, P2, the last configuration of P3.
In conjunction with Fig. 1, prior art is by sending CCM (Continuity CheckMessage in the tunnel, connectivity check messages) checks the connectedness in tunnel, for example PE2 periodically sends CCM to PE1 on leading with the tunnel, if PE1 does not receive the CCM message that PE2 sends in preset period, then think main and use tunnel fails, and any intermediate equipment breaks down all may cause leading and uses tunnel fails among P1, P2, the P3.Break down with P2 and to be example; PE1 is not owing to receive the CCM message that PE2 sends in predetermined period; therefore confirm main current unavailable with the tunnel; when 1 pair of message of PE this moment carries out the MAC Address encapsulation; in heading, insert B-MAC1, B-MAC2 and B-VLAN2; this message is transmitted according to the MAC forwarding-table item of P4, P5, P6 configuration on the over run tunnel, switches with this protection that realizes message transmissions.
By above-mentioned description to prior art as can be known, use the protection group of tunnel and over run tunnel during the Ethernet tunnel failure by master between source of configuration equipment and the destination device, realization is protected end to end to the Ethernet tunnel, because this mode only can be carried out the complete trails protection, and can't protect at the concrete node or the link that break down; And main with on the tunnel not being all nodes when all breaking down, the complete trails protected mode will make main all unavailable with the non-malfunctioning node on the tunnel.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of message transmitting method, system and forward node.
For realizing the purpose of the embodiment of the invention, the embodiment of the invention provides following technical scheme:
A kind of message transmitting method comprises:
Forward node receives the fault notification message that malfunctioning node sends, and described malfunctioning node is the next-hop node of described forward node;
Message according to pre-configured standby forwarding-table item, is transferred to the next-hop node of described malfunctioning node by the protection node of described malfunctioning node.
A kind of message transfer system comprises: forward node, malfunctioning node and protection node thereof,
Described malfunctioning node is used on it redirect and sends out node and send fault notification message;
Described forward node comprises:
Receiving element is used to receive the fault notification message that described malfunctioning node sends, and described malfunctioning node is the next-hop node of described forward node;
Transmission unit is used for message transferring to the protection node of described malfunctioning node according to pre-configured standby forwarding-table item;
Described protection node is used for node is sent out in described message transmissions to next redirect of described malfunctioning node.
A kind of forward node comprises:
Receiving element is used to receive the fault notification message that malfunctioning node sends, and described malfunctioning node is the next-hop node of described forward node;
Transmission unit is used for message transferring to the protection node of described malfunctioning node according to pre-configured standby forwarding-table item.
The technical scheme that is provided by the above embodiment of the invention as seen; after forward node receives the fault notification message of malfunctioning node transmission in the embodiment of the invention; message according to pre-configured standby forwarding-table item, is transferred to the next-hop node of this malfunctioning node by the protection node of this malfunctioning node.When the application embodiment of the invention is carried out message transmissions, by being forward node configuration protection node, make any forward node break down to cause when the Ethernet tunnel transmission is interrupted, the link that can both form by a last hop node, protection node and the next-hop node of this forward node is transmitted message, realized sectionalised protection thus, the flexibility of message transmissions when having improved tunnel failure to forward node in the tunnel; Owing to only malfunctioning node is protected, so the non-malfunctioning node on the tunnel is still available, has improved the availability of the link circuit resource in the network.
Description of drawings
Fig. 1 is the message transmissions structural representation in PBB-TE tunnel in the prior art;
Fig. 2 is a kind of embodiment flow chart of message transmitting method of the present invention;
Fig. 3 is the another kind of embodiment flow chart of message transmitting method of the present invention;
Fig. 4 is another embodiment flow chart of message transmitting method of the present invention;
Fig. 5 is the message transmissions structural representation in PBB-TE tunnel among the present invention;
Fig. 6 is a kind of embodiment block diagram of message transfer system of the present invention;
Fig. 7 is the another kind of embodiment block diagram of message transfer system of the present invention;
Fig. 8 is a kind of embodiment block diagram of forward node of the present invention;
Fig. 9 is another embodiment block diagram of forward node of the present invention.
Embodiment
The embodiment of the invention provides a kind of message transmitting method, system and forward node; forward node receives the fault notification message that malfunctioning node sends; described malfunctioning node is the next-hop node of described forward node; with message according to pre-configured standby forwarding-table item; transfer to the next-hop node of described malfunctioning node by the protection node of described malfunctioning node; realized sectionalised protection thus, the flexibility of message transmissions when having improved tunnel failure to forward node in the tunnel.
Need to prove; the embodiment that the protection node of the present invention by malfunctioning node carries out message transmissions is different with the heavy-route technology; the heavy-route technology is mainly used in the IP network; in the IP network each is jumped routing node according to Routing Protocol dynamic-configuration routing table, and dynamically seeks next according to this routing table and jump routing node.Specifically, each routing node in the IP network on from source node to the destination node link, all according to Routing Protocol dynamic-configuration routing table, suppose that current routing node has a plurality of next jumping routing node, then next in this routing table jumped the sequence arrangement of routing node according to priority, when this current routing node broke down, next jumped routing node according to the priority orders Dynamic Selection in the routing table.
Different with the heavy-route technology is, message transmissions embodiment of the present invention is mainly used in the traditional ethernet, traditional ethernet adopts the mode of static configuration, each is jumped to preserve on routing node by pre-configured next of network manager and jumps routing node, and according to the result transmission message of this static configuration.Therefore, pre-configured standby forwarding-table item disposes by static mode by the network manager on the forward node among the message transmissions embodiment of the present invention.
In order to make those skilled in the art person understand the technical scheme that the embodiment of the invention provides better, the technical scheme that the embodiment of the invention provides is described in further detail below in conjunction with the drawings and specific embodiments.
A kind of embodiment flow process of message transmitting method of the present invention is as shown in Figure 2:
Block diagram 201: forward node receives the fault notification message that malfunctioning node sends.
Wherein, forward node is the node except that source node and destination node on the ethernet link tunnel, and forward node belongs to the different nodes of transmitting on the layer in the same Ethernet tunnel with malfunctioning node, and malfunctioning node is the next-hop node of this forward node usually.
Block diagram 202: message according to pre-configured standby forwarding-table item, is transferred to the next-hop node of this malfunctioning node by the protection node of this malfunctioning node.
Concrete, pre-configured MAC transmits on forward node, comprises during this MAC transmits mainly use forwarding-table item, and message transmits on the tunnel the master with forwarding-table item according to main under the normal condition; Also comprise at least one standby forwarding-table item during this MAC transmits, message is according to a standby forwarding-table item under the failure condition, and protection node by malfunctioning node and protection link transmission are to main next-hop node with this malfunctioning node on the tunnel.
Wherein, main with comprising source node address, destination node address, the VLAN sign that is used for message transmissions in forwarding-table item and the standby forwarding-table item.
Wherein, malfunctioning node and its protection node are the same node of transmitting on the layer in the Ethernet.
The another kind of embodiment flow process of message transmitting method of the present invention as shown in Figure 3, certain node that this embodiment shows in the Ethernet breaks down, the process of the message transmissions when causing the Ethernet tunnel failure:
Block diagram 301: pre-configured MAC transmits on forward node.
The MAC that disposes on the forward node transmits and is used for transmitting message transmission to next-hop node according to this MAC behind the message that receives hop node transmission on it.Disposed a master during the MAC of the embodiment of the invention transmits and used forwarding-table item, this master is with the source node address that comprises message transmissions in the forwarding-table item, destination node address and VLAN sign, this main with forwarding-table item to next-hop node that should forward node; Also disposed at least one standby forwarding-table item during MAC transmits, also comprised source node address, destination node address and the VLAN sign of message transmissions in the standby forwarding-table item, standby forwarding-table item is to protection node that should the forward node next-hop node.The protection node of the next-hop node of forward node and this next-hop node is arranged on the same forwarding layer of Ethernet.
The message that transmits in the embodiment of the invention adopts the MAC-in-MAC encapsulation, inserts source node address, destination node address and VLAN sign during encapsulation in heading.When message transmissions arrives each forward node, transmit this message according to the information in the heading.
Block diagram 302: judge whether detect malfunctioning node on the Ethernet tunnel, if then carry out block diagram 303; Otherwise, carry out block diagram 308.
Comprise several forward node on the Ethernet tunnel of setting up between source node and the destination node, forward node lays respectively at forwarding layers different in the Ethernet, and message is sent to destination node by the transmission layer by layer of forward node from source node.But, when any one forward node in the above-mentioned forward node breaks down, all will cause the Ethernet tunnel fails, make message transmissions interrupt, whether the forward node that therefore needs to detect on the Ethernet tunnel in real time breaks down.
Usually whether break down in order to detect forward node, periodically send the connectedness that CCM message is checked the tunnel by destination node to source node, when source node is not received CCM message in predetermined period, then determine to detect malfunctioning node, otherwise explanation Ethernet tunnel is normal.
Block diagram 303: malfunctioning node redirect on it is sent out node and is sent fault notification message.
Node is sent out in the redirect on it of malfunctioning node reverse transfer fault notification message, and this fault notification message is used to inform the position of malfunctioning node, further can also be used to inform the particular type of fault.
Block diagram 304: this forward node is searched the standby forwarding-table item of MAC in transmitting.
After forward node receives fault notification message, determine the position of malfunctioning node according to the information in this message, and search pre-configured MAC and transmit, because the ethernet link at current malfunctioning node place is unavailable, therefore the master during message can't be transmitted according to MAC again transmits with list item, and need search the standby forwarding-table item of MAC in transmitting, and carry out message transmissions by this standby forwarding-table item.
When in the MAC of forward node transmits, only having disposed a standby forwarding-table item, search this standby forwarding-table item and get final product; When in the MAC of forward node transmits, having disposed a plurality of standby forwarding-table item, can therefrom select a standby forwarding-table item according to the priority that sets in advance.
Block diagram 305: should be set to effectively by standby forwarding-table item, and lead be set to forwarding-table item invalid.
Owing to can't carry out message transmissions with forwarding-table item by main, therefore lead being set to invalidly with forwarding-table item, a standby forwarding-table item that finds simultaneously is set to effectively.
Block diagram 306: the protection node that message is transferred to this malfunctioning node according to this standby forwarding-table item.
Forwarding port in the standby forwarding-table item is corresponding to the protection node of malfunctioning node, and message is transferred to this protection node according to this standby forwarding-table item.
Block diagram 307: the protection node is sent out node with this message transmissions to next redirect of this malfunctioning node, finishes current flow process.
The protection node is a forward node in the Ethernet, comprises source node address, destination node address and VLAN sign in the forwarding-table item that disposes on this protection node, and this forwarding-table item is corresponding to the next-hop node of malfunctioning node.The one section link that is equivalent to form between the last hop node, protection node, next-hop node of malfunctioning node is used to protect this malfunctioning node and the link between a hop node and the next-hop node on it.
Block diagram 308: message is transmitted on leading with the tunnel according to leading with forwarding-table item, finish current flow process.
Message transmissions is behind the next-hop node of malfunctioning node, and this next-hop node and follow-up forward node still transmit this message according to the main of configuration with forwarding-table item on the Ethernet tunnel that does not break down, until with this message transmissions to destination node.
Another flow process of message transmitting method of the present invention as shown in Figure 4, this embodiment shows the message transmissions flow process when detecting the Ethernet tunnel failure to fault recovery:
Block diagram 401: pre-configured MAC transmits on forward node.
The MAC that disposes on the forward node transmits and is used for transmitting message transmission to next-hop node according to this MAC behind the message that receives hop node transmission on it.Disposed a master and use forwarding-table item in MAC transmits, this master is with the source node address that comprises message transmissions in the forwarding-table item, destination node address and VLAN sign, this main with forwarding-table item to next-hop node that should forward node; Also disposed at least one standby forwarding-table item during MAC transmits, also comprised source node address, destination node address and the VLAN sign of message transmissions in the standby forwarding-table item, standby forwarding-table item is to protection node that should the forward node next-hop node.The protection node of the next-hop node of forward node and this next-hop node is arranged on the same forwarding layer of Ethernet.
Block diagram 402: judge whether detect malfunctioning node on the Ethernet tunnel, if then carry out block diagram 403; Otherwise, carry out block diagram 408.
Comprise several forward node on the Ethernet tunnel of setting up between source node and the destination node, when any one forward node in the above-mentioned forward node breaks down, all will cause the Ethernet tunnel fails, make message transmissions interrupt, therefore determine whether to detect malfunctioning node by periodically sending CCM message to source node by destination node.
Block diagram 403: malfunctioning node redirect on it is sent out node and is sent fault notification message.
Block diagram 404: the standby forwarding-table item during this forward node is transmitted according to MAC, with the protection node of message transmissions to this malfunctioning node.
After forward node receives fault notification message, determine the position of malfunctioning node according to the information in this message, and search pre-configured MAC and transmit, because the ethernet link at current malfunctioning node place is unavailable, therefore the master during message can't be transmitted according to MAC again transmits with list item, and need search the standby forwarding-table item of MAC in transmitting, and carry out message transmissions by this standby forwarding-table item.
Owing to can't carry out message transmissions with forwarding-table item by main, therefore lead being set to invalidly with forwarding-table item, a standby forwarding-table item that finds simultaneously is set to effectively.Forwarding port in the standby forwarding-table item is corresponding to the protection node of malfunctioning node, and message is transferred to this protection node according to this standby forwarding-table item.
Block diagram 405: the protection node is sent out node with this message transmissions to next redirect of this malfunctioning node.
Comprise source node address, destination node address and VLAN sign in the forwarding-table item that disposes on the protection node, this forwarding-table item is corresponding to the next-hop node of malfunctioning node.
Block diagram 406: whether the fault of judging this malfunctioning node is recovered, if then carry out block diagram 407; Otherwise, return block diagram 404.
Block diagram 407: forward node is led with forwarding-table item and is set to effectively, and standby forwarding-table item be set to invalid.
Because detecting the fault of malfunctioning node recovers, therefore malfunctioning node redirect on it is sent out node and is sent fault recovery message, a last redirect that receives this fault recovery message is sent out node and is searched MAC and transmit, master in then MAC being transmitted is set to effectively from invalid with forwarding-table item, and be set to effective standby forwarding-table item and be set to invalidly, make message can be again transmit with forwarding-table item according to main.
Block diagram 408: message is transmitted on leading with the tunnel according to leading with forwarding-table item, finish current flow process.
When source node resend message, because main all normal with all forward node on the tunnel, so message was according to mainly transmitting on the tunnel the master with forwarding-table item of disposing on each forward node, until with message transmissions to destination node.
In conjunction with a kind of Ethernet tunnel structure schematic diagram of the invention described above method embodiment as shown in Figure 5: wherein PE1 is source device (MAC Address is B-MAC1), PE2 is destination device (MAC Address is B-MAC2), P1 to P6 is the intermediate equipment that is used to E-Packet, the tunnel that is used for message transmissions between PE1 and PE2 is from PE1, through P1, P2, the forward-path of P3 to PE2, having disposed MAC on P1 to P6 respectively transmits, suppose that this MAC comprises a main forwarding-table item and the standby forwarding-table item used in transmitting, with P1 is example, and the MAC of its configuration transmits as shown in table 1 below:
Table 1
| The list item title | Source node address | The destination node address | The VLAN sign | Corresponding node |
| The main forwarding-table item of using | B-MAC1 | B-MAC2 | B-VLAN1 | P2 |
| Standby forwarding-table item | B-MAC1 | B-MAC2 | B-VLAN1 | P5 |
In conjunction with Fig. 5 and last table 1 as can be known, main with forwarding-table item corresponding to P2, standby forwarding-table item is corresponding to P5, P5 is the protection equipment of P2, and P5 and P2 are two layers of forwarding unit in the Ethernet.Breaking down with P2 below is example, describes the transmission course of message in detail:
Tunnel between PE1 and PE2 just often, the master that each intermediate equipment disposes is set to effectively with forwarding-table item, it is invalid that standby forwarding-table item is set to, message from PE1, transfers to PE2 through behind P1, P2, the P3 according to forward-path.When detecting P2 and break down, P2 sends fault notification message to P1, P1 receives and searches MAC as shown in table 1 after this message and transmit, and the master of this MAC in transmitting be set to forwarding-table item invalid, standby simultaneously forwarding-table item is set to effectively, after subsequent packet is sent to P1 from PE1, P1 is according to the forward node of standby forwarding-table item correspondence, message is forwarded on the P5, P5 is forwarded to P3 with forwarding-table item with message according to the master of its configuration, with forwarding-table item message is forwarded to PE2 according to main by P3 then.
After detecting the P2 fault recovery, send fault recovery message by P2 to P1, master in the P1 table 1 is set to effectively with forwarding-table item, it is invalid that standby forwarding-table item is set to, subsequent packet according to the master who disposes on each intermediate equipment with forwarding-table item from PE1, transfer to PE2 from P1, P2, P3 successively.
Corresponding with message transmitting method embodiment of the present invention, the invention also discloses a kind of embodiment of message transfer system.
A kind of embodiment block diagram of message transfer system of the present invention as shown in Figure 6.
This system comprises: forward node 610, malfunctioning node 620 and protection node 630.
Wherein, malfunctioning node 620 is used on it redirect and sends out node 610 and send fault notification message.Forward node 610 comprises receiving element 611, is used to receive the fault notification message that described malfunctioning node 620 sends; Transmission unit 612 is used for message transferring to the protection node 630 of described malfunctioning node 620 according to pre-configured standby forwarding-table item.Described protection node 630 is used for node is sent out in described message transmissions to next redirect of described malfunctioning node 620.
The another kind of embodiment block diagram of message transfer system of the present invention as shown in Figure 7.
This system comprises: forward node 710, malfunctioning node 720 and protection node 730.
Wherein, forward node 710 comprises: dispensing unit 711, and be used for pre-configured MAC and transmit, comprise main during described MAC transmits with forwarding-table item and at least one standby forwarding-table item; Receiving element 712 is used to receive the fault notification message that described malfunctioning node 720 sends, and described malfunctioning node 720 is the next-hop node of described forward node 710; Unit 713 is set, is used for described master and is set to invalidly with forwarding-table item, and a described standby forwarding-table item is set to effectively; Transmission unit 714 is used for message transferring to the protection node 730 of described malfunctioning node 720 according to pre-configured standby forwarding-table item; Judging unit 715, when being used to receive fault recovery message, judge the fault recovery of described malfunctioning node 720, be provided with unit 713 and be further used for described master and be set to effectively with forwarding-table item this moment, and described standby forwarding-table item is set to invalidly, and transmission unit 714 is further used for described message is transmitted with forwarding-table item according to described master.
Corresponding with the embodiment of message transmitting method of the present invention and system, the present invention also provides a kind of embodiment of forward node.
A kind of embodiment block diagram of forward node of the present invention as shown in Figure 8, this forward node comprises: receiving element 810 and transmission unit 820.
Wherein, receiving element 810 is used to receive the fault notification message that malfunctioning node sends, and described malfunctioning node is the next-hop node of described forward node; Transmission unit 820 is used for message transferring to the protection node of described malfunctioning node according to pre-configured standby forwarding-table item.
The another kind of embodiment block diagram of forward node of the present invention as shown in Figure 9, this forward node comprises: dispensing unit 910, receiving element 920, unit 930, transmission unit 940 and judging unit 950 are set.
Wherein, dispensing unit 910 is used for pre-configured MAC to be transmitted, and comprises main with forwarding-table item and at least one standby forwarding-table item during described MAC transmits; Receiving element 920 is used to receive the fault notification message that described malfunctioning node sends, and described malfunctioning node is the next-hop node of described forward node; Unit 930 is set is used for described master and is set to invalidly with forwarding-table item, and a described standby forwarding-table item is set to effectively; Transmission unit 940 is used for message transferring to the protection node of described malfunctioning node according to pre-configured standby forwarding-table item; When judging unit 950 is used to receive fault recovery message, judge the fault recovery of described malfunctioning node; When described malfunctioning node fault recovery, the described unit 930 that is provided with is further used for described master and is set to effectively with forwarding-table item, and described standby forwarding-table item be set to invalid; Described transmission unit 940 is further used for, and described message is transmitted with forwarding-table item according to described master.
Description by the embodiment of the invention as can be known, when the application embodiment of the invention is carried out message transmissions, by being forward node configuration protection node, make any forward node break down to cause when the Ethernet tunnel transmission is interrupted, the link that can both form by a last hop node, protection node and the next-hop node of this forward node is transmitted message, realized sectionalised protection thus, the flexibility of message transmissions when having improved tunnel failure to forward node in the tunnel; Owing to only malfunctioning node is protected, so the non-malfunctioning node on the tunnel is still available, has improved the availability of the link circuit resource in the network.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program is when carrying out, comprise the steps: that forward node receives the fault notification message that malfunctioning node sends, described malfunctioning node is the next-hop node of described forward node; Message according to pre-configured standby forwarding-table item, is transferred to the next-hop node of described malfunctioning node by the protection node of described malfunctioning node.Described storage medium, as: ROM/RAM, magnetic disc, CD etc.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (14)
1. a message transmitting method is characterized in that, comprising:
Forward node receives the fault notification message that malfunctioning node sends, and described malfunctioning node is the next-hop node of described forward node;
Message according to pre-configured standby forwarding-table item, is transferred to the next-hop node of described malfunctioning node by the protection node of described malfunctioning node.
2. method according to claim 1 is characterized in that, further comprises:
Pre-configured MAC forwarding+table on described forward node comprises main with forwarding-table item and at least one standby forwarding-table item during described MAC transmits.
3. method according to claim 2 is characterized in that, described forwarding-table item comprises: the source node address, destination node address, the virtual LAN VLAN sign that are used for message transmissions.
4. method according to claim 2, forward node further comprises after receiving described fault notification message:
It is invalid that described master is set to forwarding-table item, and a described standby forwarding-table item is set to effectively.
5. method according to claim 2 is characterized in that, further comprises:
When forward node receives fault recovery message, judge the fault recovery of described malfunctioning node;
Described master is set to effectively with forwarding-table item, and described standby forwarding-table item be set to invalid;
Described message is transmitted with forwarding-table item according to described master.
6. according to any described method of claim 1 to 5, it is characterized in that described malfunctioning node and described protection node are the same node of transmitting on the layer in the Ethernet;
Described malfunctioning node is the different nodes of transmitting on the layer in the Ethernet with described forward node.
7. a message transfer system is characterized in that, comprising: forward node, malfunctioning node and protection node thereof,
Described malfunctioning node is used on it redirect and sends out node and send fault notification message;
Described forward node comprises:
Receiving element is used to receive the fault notification message that described malfunctioning node sends, and described malfunctioning node is the next-hop node of described forward node;
Transmission unit is used for message transferring to the protection node of described malfunctioning node according to pre-configured standby forwarding-table item;
Described protection node is used for node is sent out in described message transmissions to next redirect of described malfunctioning node.
8. system according to claim 7 is characterized in that, described forward node also comprises:
Dispensing unit is used for pre-configured MAC and transmits, and comprises main with forwarding-table item and at least one standby forwarding-table item during described MAC transmits.
9. system according to claim 8 is characterized in that, described forward node also comprises:
The unit is set, is used for described master and is set to invalidly with forwarding-table item, and a described standby forwarding-table item is set to effectively.
10. system according to claim 8 is characterized in that, described forward node also comprises:
Judging unit when being used to receive fault recovery message, is judged the fault recovery of described malfunctioning node;
The described unit that is provided with is further used for, and described master is set to effectively with forwarding-table item, and described standby forwarding-table item be set to invalid;
Described transmission unit is further used for, and described message is transmitted with forwarding-table item according to described master.
11. a forward node is characterized in that, comprising:
Receiving element is used to receive the fault notification message that malfunctioning node sends, and described malfunctioning node is the next-hop node of described forward node;
Transmission unit is used for message transferring to the protection node of described malfunctioning node according to pre-configured standby forwarding-table item.
12. forward node according to claim 11 is characterized in that, also comprises:
Dispensing unit is used for pre-configured MAC and transmits, and comprises main with forwarding-table item and at least one standby forwarding-table item during described MAC transmits.
13. forward node according to claim 12 is characterized in that, also comprises:
The unit is set, is used for described master and is set to invalidly with forwarding-table item, and a described standby forwarding-table item is set to effectively.
14. forward node according to claim 12 is characterized in that, also comprises:
Judging unit when being used to receive fault recovery message, is judged the fault recovery of described malfunctioning node;
The described unit that is provided with is further used for, and described master is set to effectively with forwarding-table item, and described standby forwarding-table item be set to invalid;
Described transmission unit is further used for, and described message is transmitted with forwarding-table item according to described master.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100068070A CN101227399B (en) | 2008-01-31 | 2008-01-31 | Message transmission method, system and forwarding node |
Applications Claiming Priority (1)
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| WO2011011941A1 (en) * | 2009-07-31 | 2011-02-03 | 中兴通讯股份有限公司 | Local protection method of ethernet tunnel and sharing node of work sections of protection domain |
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