CN103281244A - Service carrying method and device of multi-protocol label switching network - Google Patents
Service carrying method and device of multi-protocol label switching network Download PDFInfo
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Abstract
The invention discloses a service carrying method and device of a multi-protocol label switching network, and belongs to a multi-protocol label switching technology which guarantees service quality and is high in reliability. The method is applied to an MPLS network to set up LSP1:1 protection. The ingress port of an edge router node in the MPLS network can bear a plurality of PW services. The method comprises packing the PW services to be an MPLS message, bearing the MPLS message on a main transmission path or a backup transmission path, and outputting the MPLS message from the corresponding egress port of the edge router node. Due to the fact that switching operation time is shortened, protection switching performance is improved.
Description
Technical field
The present invention relates to the multiprotocol label switching (mpls) technical field, relate in particular to a kind of service bearer method and device of MPLS network.
Background technology
At present, communication system carrier-class reliability requirement comprises 59 network high reliability request, and typical telecommunications level Ethernet service requires to realize the network self-healing time requirement of 50 milliseconds (ms).
When the multiprotocol label switching (mpls) network design, for guaranteeing that communication network can satisfy the carrier-class reliability requirement, service protection mechanism is the critical function that networking need be considered fast.
Linear protection switching is the protection mechanism of distributing corresponding resource conservation for working resource, adopts predictable mode to realize the switching of Internet resources, can make things convenient for operator to carry out planning, deployment and the management of network, realizes the carrier-class operation.Protection refers to specify entity fully for work entity before fault takes place, and reacts rapidly and be switched to be equipped with entity when network failure takes place, and realizes professional rapidly self-healing.
MPLS is as connection-oriented backbone technology; when finishing the efficient forwarding of data rapidly; also need guarantee service quality and reliability of data transmission, even also want when service disconnection and can in time recover, requirement can be satisfied the protection switch time of 50ms on carrier-class is used.
Equipment in the backbone network need be supported the linear protection switching function based on the MPLS network; at main label switching path (LSP; also claim the linear tag interchange channel) when breaking down; pseudo-line (PW) business of the protection of carrying can switch to rapidly and be equipped with on the LSP; and shorten professional the switching the used time as far as possible, to improve network reliability.
Summary of the invention
Technical problem to be solved by this invention provides a kind of multiple label switching technology that can guarantee service quality and have high reliability.
In order to solve the problems of the technologies described above, the invention provides a kind of service bearer method of multiprotocol label switching (mpls) network, be applied to set up on this MPLS network label switched path (LSP) 1:1 protection; Can carry many pseudo-lines (PW) business in the described MPLS network on the inbound port of edge nodes; This method comprises:
Described many PW business are packaged into a MPLS message;
Described MPLS message is carried on main transmission path or is equipped with on the transmission path, and from the corresponding outbound port output of described edge nodes.
Preferably, described many PW business are packaged into a MPLS message, comprise:
Setting up the outlet label is the inside Inbound LSP (inner_ingress_lsp) of inner multi-protocol label switching (T-MPLS) label (inner_mpls_label), described many PW business is packaged into the described MPLS message that is carried on the described inner_ingress_lsp.
Preferably, the entrance label of described main transmission path is described inner_mpls_label, and the outlet label is the main outbound port label of described edge nodes; The described entrance label that is equipped with transmission path is described inner_mpls_label, and the outlet label is the outbound port label fully of described edge nodes.
Preferably, described MPLS message is carried on main transmission path or is equipped with on the transmission path, and from the corresponding outbound port output of described edge nodes, comprise: when node master transmission path is in normal condition, described MPLS message is carried on the described main transmission path, and from described main outbound port output; When protection is switched in triggering, described MPLS message switching carrier is equipped with on the transmission path to described, and exports from the described outbound port that is equipped with.
Preferably, described main outbound port and main outbound port label, describedly be equipped with outbound port and be equipped with the outbound port label, preset port and port corresponding label for described edge nodes.
The application also provides a kind of service bearer device of multiprotocol label switching (mpls) network, is applied to set up on this MPLS network label switched path (LSP) 1:1 protection; Can carry many pseudo-lines (PW) business in the described MPLS network on the inbound port of edge nodes; This device comprises:
Package module is set to described many PW business are packaged into a MPLS message;
Carrier module is set to described MPLS message is carried on main transmission path or be equipped with on the transmission path, and exports from the corresponding outbound port of described edge nodes.
Preferably, described package module comprises:
Set up the unit, being set to set up the outlet label is the inside Inbound LSP (inner_ingress_lsp) of inner multi-protocol label switching (T-MPLS) label (inner_mpls_label);
Encapsulation unit is set to described many PW business are packaged into the described MPLS message that is carried on the described inner_ingress_lsp.
Preferably, the entrance label of described main transmission path is described inner_mpls_label, and the outlet label is the main outbound port label of described edge nodes; The described entrance label that is equipped with transmission path is described inner_mpls_label, and the outlet label is the outbound port label fully of described edge nodes.
Preferably, described carrier module is set to when node master transmission path is in normal condition described MPLS message is carried on the described main transmission path, and from described main outbound port output; When protection is switched in triggering, described MPLS message switching carrier is equipped with on the transmission path to described, and exports from the described outbound port that is equipped with.
Preferably, described main outbound port and main outbound port label, describedly be equipped with outbound port and be equipped with the outbound port label, preset port and port corresponding label for described edge nodes.
Preferably, described package module is integrated in the exchange chip, and described carrier module is integrated in another exchange chip.
Preferably, this device also comprises:
Port is set to the described MPLS message non-processor that described many PW business are packaged into is recycled to the loopback port of an exchange chip from loop circuit; Wherein, described package module and carrier module are integrated in the described exchange chip.
Compared with prior art; the application's embodiment is at label switched path (LSP; also claim the linear tag interchange channel) concrete PW (pseudo-line) service conditions of 1:1 protection; by shortening the switching operation time; improved the protection switching performance, the time complexity that the LSP1:1 protection can be switched is reduced into O (1).The application's embodiment can significantly improve the performance that the LSP1:1 protection is switched under failure detection time and the time-invariant situation of fault notification.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in specification, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and constitutes the part of specification, is used from the application's embodiment one and explains technical scheme of the present invention, does not constitute the restriction to technical solution of the present invention.
Fig. 1 be ITU-T G.808.1 with the time model schematic diagram of the network protection of MEF2 definition.
Fig. 2 is LSP1:1APS protection business model schematic diagram in the MPLS network application.
Fig. 3 is the LSP1:1APS protection business model schematic diagram of present embodiment.
Fig. 4 is the schematic flow sheet of service bearer method of the MPLS network of the embodiment of the present application.
Fig. 5 is the organigram of service bearer device of the MPLS network of the embodiment of the present application.
Fig. 6 protects professional hardware logic model schematic diagram for the LSP1:1APS of the embodiment of the present application.
Fig. 7 is professional another hardware logic model schematic diagram of LSP1:1APS protection of the embodiment of the present application.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the application technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.Each feature among the embodiment of the present application and the embodiment mutually combining under the prerequisite of not conflicting mutually is all within protection scope of the present invention.
In addition, can in the computer system such as one group of computer executable instructions, carry out in the step shown in the flow chart of accompanying drawing.And, though there is shown logical order in flow process, in some cases, can carry out step shown or that describe with the order that is different from herein.
According to the G.808.1 definition of (one of international telecommunication union telecommunication's standard) and Metro Ethernet Forum (MEF) 2 of ITU-T, the time model of network protection as shown in Figure 1.
ITU-T requires the time of linear protection switching in 50ms.According to the time model of network protection, need shorten the time of fault detect, fault notification and switching operation emphatically.Under the constant situation of fault detect and notification time, improve the performance that protection is switched, generally can only start with from the performance that improves switching operation, shortening the time of switching operation, thereby shorten the time that information protection is switched on the whole.
In the MPLS network application, shown in Fig. 2 business model, MPLS Virtual network operator edge router (provider edge router, PE) inbound port on the node can carry many PW (pseudo-line) business (such as n bar PW business on Inbound label switched path (ingress lsp), n is more than or equal to 1), the main Inbound LSP (ingress_work_lsp) that Inbound label switched path (ingress lsp) comprises and be equipped with on the Inbound LSP (ingress_protect_lsp) and can carry this many PW business.
On the PE of MPLS network node, for any strip label switching path (LSP also claims the linear tag interchange channel), the PW business of its carrying is extracted from inbound port, after business is packaged into the MPLS message, be transported to the MPLS network from pre-configured fixing outbound port.
In MPLS networking topology, an outbound port correspondence of PE node a LSP link.The essence of LSP1:1 protection, the PW switching services with main LSP carrying goes carrying to being equipped with on the LSP exactly.
The business object that protection is switched in the LSP1:1 protection is the PW business that main ingress_work_lsp goes up carrying.Be equipped with ingress_protect_lsp and go up the PW business of carrying not in the scope of protection.
From the angle of the switching operation of LSP1:1 APS (APS), have only two kinds of protection switching actions:
(1) PW that protects is switched to protection ingress_protect_lsp from work ingress_work_lsp;
(2) PW that protects is switched to work ingress_work_lsp from protection ingress_protect_lsp.
If LSP1:1 has protected n bar PW business, the conventional realization needs poll to switch this n bar PW, and the time complexity of LSP of switching the carrying of a PW is O (1), and the time complexity of switching operation of finishing the n bar PW of a LSP1:1 protection is exactly O (n).Can find that by aforementioned analysis this order of magnitude is the poll protection switching operation of n, is the important restraining factors that improve LSP1:1 protection switching performance.The application's embodiment is that the protection switching operation of O (n) is optimized with time complexity, can reach the purpose that improves the protection switching performance.It is that n is reduced to 1 by the order of magnitude that the application's embodiment can protect LSP1:1 the time complexity of switching operation.
As shown in Figure 3 and Figure 4, the service bearer method of the multiprotocol label switching (mpls) network of the embodiment of the present application is applied to set up on this MPLS network label switched path (LSP) 1:1 protection; Can carry many pseudo-lines (PW) business in the described MPLS network on the inbound port of edge nodes.This method mainly comprises the steps:
Step S410 is packaged into a MPLS message with many PW business.
When the application's embodiment sets up the LSP1:1 protection at the MPLS network; at device interior an inner Inbound LSP (inner_ingress_lsp) is set, the inside corresponding with a main ingress_work_lsp main transmission LSP (inner_work_transit_lsp) and an inside corresponding with being equipped with ingress_protect_lsp are transmitted LSP (inner_protect_transit_lsp) fully.
Wherein, the inbound port of inner_work_transit_lsp is set to the inbound port on the PE node, its outlet label is: inner multi-protocol label switching (T-MPLS) label inner_mpls_label, and the entrance label of inner main transmission LSP (inner_work_transit_lsp) is inner_mpls_label, and the outlet label is the main outbound port label on the PE node: mpls_work_lable; The entrance label that inside is transmitted LSP (inner_protect_transit_lsp) fully is inner_mpls_label, and the outlet label is outbound port label: the mpls_protect_lable fully on the PE node.
After LSP1:1 protection was set up, it was the MPLS message of inner_mpls_label that many PW business of the carrying of the inbound port on the PE node are packaged into an outlet label.
Step S420 is carried on main transmission path with the MPLS message or is equipped with on the transmission path, and according to the work at present state with the corresponding outbound port output from edge nodes of the output label set.
If when being normal operating conditions (that is: the main outbound port outgoing message on the use PE node), this message is set its output label: mpls_work_lable, select inner main transmission LSP (inner_work_transit_lsp) for use, and the main outbound port from the PE node is exported; When needs are protected (that is: using the outbound port outgoing message fully on the PE node); at this moment; be that the MPLS message of inner_mpls_label is switched to inside and transmits LSP (inner_protect_transit_lsp) fully with the outlet label, the outlet label of setting this message this moment is to be equipped with outbound port label: mpls_protect_lable on the PE node.
This shows, in the embodiment of the present application, the PW label of not perception of the MPLS message message that transmits in the MPLS network, n bar PW message, by just becoming 1 MPLS message after the inner_ingress_lsp processing, many PW messages before the inner_*_transit_lsp of back receives have become a MPLS message at this moment.When triggering switching operation, the application's embodiment only need switch the inside transit lsp corresponding with the active and standby transmission direction LSP in inside and get final product, and all only see a MPLS message for inner_work_transit_lsp or inner_protect_transit_lsp, so far when needs switch, the switch transition of many PW of the prior art is the switching of a MPLS message in the present embodiment, and the time complexity of switching operation is O (1).Thus, the order of magnitude of LSP1:1 protection switching operation time is reduced to 1 by n.
Need to prove for above-mentioned switching:
(1) described main outbound port and main outbound port label, described be equipped with outbound port and be equipped with that the outbound port label is described edge nodes preset port and port corresponding label, be the configuration item of node.
(2) triggering the condition of switching operation can be for of the prior art any, and that the mode that switch in the path also can be selected is of the prior art any, and for example, the mode of gate-controlled switch all repeats no more at this.
The service bearer device of the MPLS network of the embodiment of the present application is applied to set up on this MPLS network label switched path (LSP) 1:1 protection; Can carry many PW (pseudo-line) business in the described MPLS network on the inbound port of edge nodes.As shown in Figure 5, this device mainly comprises package module 510, carrier module 520.
Package module 510 is set to after the LSP1:1 protection is set up described many PW business are packaged into a MPLS message.
Carrier module 520 is set to described MPLS message is carried on main transmission path or be equipped with on the transmission path, and exports from the corresponding outbound port of described edge nodes.
Among the application's the embodiment, device interior is provided with an inner Inbound LSP (inner_ingress_lsp), and the inside corresponding with a main ingress_work_lsp main transmission LSP (inner_work_transit_lsp) and an inside corresponding with being equipped with ingress_protect_lsp are transmitted LSP (inner_protect_transit_lsp) fully.
Wherein, the inbound port of inner_work_transit_lsp is set to the inbound port on the PE node, its outlet label is: inner multi-protocol label switching (T-MPLS) label inner_mpls_label, and the entrance label of inner main transmission LSP (inner_work_transit_lsp) is set to inner_mpls_label, and the outlet label is the main outbound port label on the PE node: mpls_work_lable; The entrance label that inside is transmitted LSP (inner_protect_transit_lsp) fully is inner_mpls_label, and the outlet label is outbound port label: the mpls_protect_lable fully on the PE node.
As shown in Figure 5, among the application's the embodiment, package module 510 comprises sets up unit 511 and encapsulation unit 512.
Setting up unit 511, to be set to set up the outlet label be the inside Inbound LSP (inner_ingress_lsp) of inner multi-protocol label switching (T-MPLS) label (inner_mpls_label).
Encapsulation unit 512 is set to described many PW business are packaged into the described MPLS message that is carried on the described inner_ingress_lsp.
Among the application's the embodiment, the entrance label of described main transmission path is described inner_mpls_label, and the outlet label is the main outbound port label of described edge nodes; The described entrance label that is equipped with transmission path is described inner_mpls_label, and the outlet label is the outbound port label fully of described edge nodes.
Among the application's the embodiment, described carrier module is set to when node master transmission path is in normal condition described MPLS message is carried on the described main transmission path, and from described main outbound port output; When protection is switched in triggering, described MPLS message switching carrier is equipped with on the transmission path to described, and exports from the described outbound port that is equipped with.
Among the application's the embodiment, described main outbound port and main outbound port label, describedly be equipped with outbound port and be equipped with the outbound port label, preset port and port corresponding label for described edge nodes.
When carrying out hardware designs with exploitation, the application's embodiment can adopt two exchange chips to finish being connected and the information transmission between inner_ingress_lsp and inner_work_transit_lsp and the inner_protect_transit_lsp, as shown in Figure 6.Wherein, first exchange chip 610 can be considered to above-mentioned package module 510, the second exchange chips 620 can be considered to above-mentioned carrier module 520, can adopt the ether bus of GE or 10GE to carry out interconnected between the two.In the schematic diagram shown in Figure 6, represent to receive (receive) port with R, represent to send (send) port with S.
First exchange chip 610, be provided with an inner Inbound LSP (inner_ingress_lsp), it is a MPLS message of inner multi-protocol label switching (T-MPLS) label (inner_mpls_label) that many PW business on the PE node inbound port are packaged into the outlet label, and be carried on inner Inbound LSP (inner_ingress_lsp), send to second exchange chip 620.
Second exchange chip 620; be provided with one corresponding with main ingress_work_lsp of the prior art; the entrance label is inner_mpls_label; the outlet label is the main transmission in the inside LSP (inner_work_transit_lsp) of mpls_work_lable; and one corresponding with the ingress_protect_lsp that is equipped with of the prior art; the entrance label is inner_mpls_label; the outlet label is that the inside of mpls_protect_lable is transmitted LSP (inner_protect_transit_lsp) fully; to realize defencive function, the MPLS message of the inner multi-protocol label switching (T-MPLS) label of the use that it will be received (inner_mpls_label) transmits one of LSP (inner_protect_transit_lsp) according to the work at present state fully with the inner main transmission LSP (inner_work_transit_lsp) of the output label selection of setting or inside to be exported from the outbound port on the corresponding PE node.
Among the application's the embodiment, the outbound port of the inner_work_transit_lsp of carrying and inner_protect_transit_lsp is specifically selected the port on which exchange chip on second exchange chip 620, can be controlled by switch according to the actual conditions of data transmission link.Usually, in normal operation, select inner_work_transit_lsp, and under guard mode, select inner_protect_transit_lsp.
In hard-wired another embodiment of the present invention, can pass through a slice exchange chip, and utilize to use field programmable gate array (FPGA) the realizations port of etc.ing from loop technique (other can realize port Zi the technology of encircling also can) finish inner_ingress_lsp to being connected of inner_work_transit_lsp and inner_protect_transit_lsp, thereby can reduction scheme realization cost.
As shown in Figure 7, the included exchange chip 720 of the embodiment of the present application adopts the ether bus of GE or 10GE to be connected with port from loop circuit 710.
Exchange chip 720 is provided with an inner Inbound LSP (inner_ingress_lsp), and many PW business of the inbound port on the PE node carrying MPLS message that to be packaged into an outlet label be inner_mpls_label fixedly is carried on the inner_ingress_lsp of inside; Export this MPLS message to port from loop circuit 710 from the loopback port of exchange chip 720.And, its also be provided with one corresponding with main ingress_work_lsp of the prior art, the entrance label is inner_mpls_label, the outlet label is the main transmission in the inside LSP (inner_work_transit_lsp) of mpls_work_lable, and one corresponding with the ingress_protect_lsp that is equipped with of the prior art, the entrance label is inner_mpls_label, the outlet label is the internal transmission LSP (inner_protect_transit_lsp) of mpls_protect_lable, to be the MPLS message input of chip 720 loopback ports in return again of inner_mpls_label from the outlet label of loop circuit 710 outputs from port, and select inner main transmission LSP (inner_work_transit_lsp) or inside to transmit one of LSP (inner_protect_transit_lsp) fully according to the work at present state with the output label of setting and export from the outbound port on the corresponding PE node.
Port is from loop circuit 710, the MPLS message (the outlet label is inner_mpls_label) that many PW business that the employing port will carry from the inner_ingress_lsp of exchange chip 720 outputs from ring are packaged into, be input to non-processor the loopback port of exchange chip 720, this moment, message was the MPLS message of inner_mpls_label for the outlet label still.Exemplary, port can adopt FPGA to realize from loop circuit 710.
In the application's shown in Figure 7 embodiment, in fact exchange chip 720 is integrated package module 510 and carrier module 520, but because the monolithic exchange chip is realized an exchanges data, so on this implementation, come the loopback port of exchange chip 720 is carried out the loopback operation from loop circuit 710 by means of port, thereby reach the application's purpose, namely, from port from the message of loop circuit 710 input can for example phase-locked loop circuit realize from loop circuit behind a figure, again from the loopback port input of the exchange chip of this message input.That is, all protected PW service bearers are on inner_ingress_lsp, and being encapsulated as label is the MPLS message of inner_mpls_label, after the processing of loop circuit 710, are transmitted back to exchange chip 720 by port from loop circuit 710 at the process port.In exchange chip 720, this MPLS message selects inner_work_transit_lsp or inner_protect_transit_lsp to carry output according to the switching operation state of LSP1:1APS.As seen, in fact, in the protection switching operation of the LSP1:1APS of the application's embodiment, switching of n bar PW is converted into the operation that a MPLS message is switched, and so the time complexity that the LSP1:1APS protection is switched is reduced to O (1).
The application's embodiment is under the fixing situation of fault detect and notification time; protect the time of switching operation to reduce an order of magnitude LSP1:1; be reduced to O (1) by O (N); shortened the time of protection switching operation greatly; and the protection performance of switching has nothing to do with the professional number of the PW of protection, can satisfy the requirement of MPLS network carrier class 50ms protection switch time better.
It is apparent to those skilled in the art that each part of the device that above-mentioned the embodiment of the present application provides, and each step in the method, they can concentrate on the single calculation element, perhaps are distributed on the network that a plurality of calculation elements form.Alternatively, they can be realized with the executable program code of calculation element.Thereby, they can be stored in the storage device and be carried out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Though the disclosed execution mode of the present invention as above, the execution mode that described content only adopts for ease of understanding the present invention is not in order to limit the present invention.Those of skill in the art under any the present invention; under the prerequisite that does not break away from the disclosed spirit and scope of the present invention; can carry out any modification and variation in form and the details implemented; but scope of patent protection of the present invention still must be as the criterion with the scope that appending claims was defined.
Claims (12)
1. the service bearer method of a multiprotocol label switching (mpls) network is applied to set up on this MPLS network label switched path (LSP) 1:1 protection; Can carry many pseudo-lines (PW) business in the described MPLS network on the inbound port of edge nodes; It is characterized in that this method comprises:
Described many PW business are packaged into a MPLS message;
Described MPLS message is carried on main transmission path or is equipped with on the transmission path, and from the corresponding outbound port output of described edge nodes.
2. service bearer method according to claim 1 is characterized in that, described many PW business are packaged into a MPLS message, comprising:
Setting up the outlet label is the inside Inbound LSP (inner_ingress_lsp) of inner multi-protocol label switching (T-MPLS) label (inner_mpls_label), described many PW business is packaged into the described MPLS message that is carried on the described inner_ingress_lsp.
3. service bearer method according to claim 2 is characterized in that,
The entrance label of described main transmission path is described inner_mpls_label, and the outlet label is the main outbound port label of described edge nodes;
The described entrance label that is equipped with transmission path is described inner_mpls_label, and the outlet label is the outbound port label fully of described edge nodes.
4. service bearer method according to claim 3 is characterized in that, described MPLS message is carried on main transmission path or is equipped with on the transmission path, and from the corresponding outbound port output of described edge nodes, comprising:
When node master transmission path is in normal condition, described MPLS message is carried on the described main transmission path, and from described main outbound port output;
When protection is switched in triggering, described MPLS message switching carrier is equipped with on the transmission path to described, and exports from the described outbound port that is equipped with.
5. service bearer method according to claim 4 is characterized in that,
Described main outbound port and main outbound port label, describedly be equipped with outbound port and be equipped with the outbound port label, preset port and port corresponding label for described edge nodes.
6. the service bearer device of a multiprotocol label switching (mpls) network is applied to set up on this MPLS network label switched path (LSP) 1:1 protection; Can carry many pseudo-lines (PW) business in the described MPLS network on the inbound port of edge nodes; It is characterized in that this device comprises:
Package module is set to described many PW business are packaged into a MPLS message;
Carrier module is set to described MPLS message is carried on main transmission path or be equipped with on the transmission path, and exports from the corresponding outbound port of described edge nodes.
7. device according to claim 6 is characterized in that, described package module comprises:
Set up the unit, being set to set up the outlet label is the inside Inbound LSP (inner_ingress_lsp) of inner multi-protocol label switching (T-MPLS) label (inner_mpls_label);
Encapsulation unit is set to described many PW business are packaged into the described MPLS message that is carried on the described inner_ingress_lsp.
8. device according to claim 7 is characterized in that,
The entrance label of described main transmission path is described inner_mpls_label, and the outlet label is the main outbound port label of described edge nodes;
The described entrance label that is equipped with transmission path is described inner_mpls_label, and the outlet label is the outbound port label fully of described edge nodes.
9. device according to claim 8 is characterized in that,
Described carrier module is set to when node master transmission path is in normal condition described MPLS message is carried on the described main transmission path, and from described main outbound port output; When protection is switched in triggering, described MPLS message switching carrier is equipped with on the transmission path to described, and exports from the described outbound port that is equipped with.
10. device according to claim 9 is characterized in that,
Described main outbound port and main outbound port label, describedly be equipped with outbound port and be equipped with the outbound port label, preset port and port corresponding label for described edge nodes.
11. device according to claim 6 is characterized in that,
Described package module is integrated in the exchange chip, and described carrier module is integrated in another exchange chip.
12. device according to claim 6 is characterized in that, this device also comprises:
Port is set to the described MPLS message non-processor that described many PW business are packaged into is recycled to the loopback port of an exchange chip from loop circuit;
Wherein, described package module and carrier module are integrated in the described exchange chip.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113438154A (en) * | 2021-07-01 | 2021-09-24 | 烽火通信科技股份有限公司 | Distributed MPLS network hierarchical protection switching method and device |
| CN114172847A (en) * | 2021-11-29 | 2022-03-11 | 烽火通信科技股份有限公司 | Multi-port bandwidth speed limiting method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016180084A1 (en) * | 2015-05-13 | 2016-11-17 | 中兴通讯股份有限公司 | Automatic protection switching method, local node and peer node |
| CN105024928A (en) * | 2015-08-05 | 2015-11-04 | 瑞斯康达科技发展股份有限公司 | Method and device for protection switching of multi-protocol label switching network |
| CN105024928B (en) * | 2015-08-05 | 2018-06-26 | 瑞斯康达科技发展股份有限公司 | A kind of pretection switch method and apparatus of multi-protocol label switching network |
| CN113438154A (en) * | 2021-07-01 | 2021-09-24 | 烽火通信科技股份有限公司 | Distributed MPLS network hierarchical protection switching method and device |
| CN113438154B (en) * | 2021-07-01 | 2022-08-12 | 烽火通信科技股份有限公司 | Distributed MPLS network hierarchical protection switching method and device |
| CN114172847A (en) * | 2021-11-29 | 2022-03-11 | 烽火通信科技股份有限公司 | Multi-port bandwidth speed limiting method and system |
| CN114172847B (en) * | 2021-11-29 | 2023-05-26 | 烽火通信科技股份有限公司 | Multi-port bandwidth speed limiting method and system |
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