CN101741671B - Method and device for realizing dual node interconnection protection in packet transport network - Google Patents
Method and device for realizing dual node interconnection protection in packet transport network Download PDFInfo
- Publication number
- CN101741671B CN101741671B CN2009102521784A CN200910252178A CN101741671B CN 101741671 B CN101741671 B CN 101741671B CN 2009102521784 A CN2009102521784 A CN 2009102521784A CN 200910252178 A CN200910252178 A CN 200910252178A CN 101741671 B CN101741671 B CN 101741671B
- Authority
- CN
- China
- Prior art keywords
- node
- tunnel
- ring
- binode
- interconnected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
Abstract
The invention discloses a method and a device for realizing dual node interconnection protection in a packet transport network. The method comprises the steps of: configuring a reverse closed loop protection tunnel in two loops with dual node interconnection respectively, and configuring a dual node interconnection tunnel between interconnection nodes, wherein the reverse closed loop protection tunnel is a shared protection tunnel of the dual node interconnection tunnel and a service tunnel; and making data enter the service tunnel or the reverse closed loop protection tunnel of another loop for transmission through the dual node interconnection tunnel and the reverse closed loop protection tunnel when cross-loop service is transmitted between the two loops and a service link between a sending end node and a receiving end node has link failure. The method and the device can save the bandwidth resource of the dual node interconnection protection.
Description
Technical field
The present invention relates to the network data transmission field, relate in particular to the implementation method and the device of dual node interconnection protection in a kind of Packet Transport Network.
Background technology
Because there is the restriction of scale in single looped network; In order to improve the coverage rate of network; Usually adopt ring to hand over ring; The topological form of the interconnected grade of binode is carried out extension of network, and PTN (packet switching network) equipment is answered business and the professional network protection function of interannular in the supporting ring, has the function that anti-single point failure or multiple spot lost efficacy.
As shown in Figure 1, binode is interconnected to be that each ring provides two structures that node is interconnected between two rings, and it structure that comprises can be:
The topology one, through being distributed in two interconnected providing between two rings for the protection that is crossed to the business of another ring from a ring;
Topology two, ring are interconnected, and encircle interconnected is a kind of network topology, and two rings are interconnected through two nodes on each ring among them, and topological function mode is that the fault of arbitrary node in this two node can not cause upward losing of any Working service of ring.
In traditional SDH (synchronous digital hierarchy transport) network; When binode is interconnected; The multiplex section protection (total bandwidth of waste 50%) that needs two monocycles of configuration, and configuration effort passage two send out (waste interconnected node bandwidth of operation, see Fig. 2) in interconnected binode.
And in Packet Transport Network; The protection tunnel (being equivalent to multiplex section protection) of ring is occupied bandwidth not when not producing protection, is configured if simulate former SDH network at interconnected node, and following scheme is arranged; It is professional to cross ring to one; Crossing the protection of ring place configuration line style, and the protection tunnel of the protection tunnel of line style protection and the shared looped network of work, can be when leading circling point like this and losing efficacy through being equipped with the link point protection.
Mode according to the line style protection is different, can be divided into:
Protect assembly to be changed to the 1+1 protection mode line style: this mode need crossed circling point configuration protection group.This scheme need not be launched APS (APS) agreement, but has the problem of bandwidth waste.
Protect assembly to be changed to 1: 1 protected mode line style: this mode need crossed circling point configuration protection group; To launch OAM (oam Operation Administration and Maintenance simultaneously; Main alarm and the performance be responsible for); Detect LSP (label switched path) state, this scheme need be launched the APS agreement.
Summary of the invention
The present invention provides the implementation method and the device of dual node interconnection protection in a kind of Packet Transport Network, the problem of waste bandwidth when being used for overcoming the transmission of prior art binode interconnect services.
The implementation method of dual node interconnection protection in a kind of Packet Transport Network comprises:
In interconnected two rings of binode, dispose back closed loop protection tunnel respectively, and between interlink node the interconnected tunnel of configuration binode, said back closed loop protection tunnel is the share protect tunnel of interconnected tunnel of binode and service tunnel;
Professional when between two rings, transmitting ring; When link failure appearred in the service link between originator node and the receipts end node, data were transmitted through service tunnel or the back closed loop protection tunnel that interconnected tunnel of binode and/or back closed loop protection tunnel get into another ring;
Wherein, encircled when being positioned at a node of homonymy to second when a node of first ring in interconnected two rings of said binode sends ring business, the interconnected tunnel of said binode forms the loop of a U-shaped between two interlink nodes; Encircled when being positioned at a node of heteropleural to second when a node of first ring in interconnected two rings of said binode sends ring business, the interconnected tunnel of said binode forms a L shaped tunnel between two interlink nodes.
Two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when first node when being positioned at the 5th node transmission business datum of homonymy; If the link failure of first node and the 3rd node comprises:
First node generation bridge joint; Professional first back closed loop protection tunnel that gets into transmits, and order is through first node, the 4th node and the 3rd node, and the 3rd node is a changeover points; This moment, business was carried out two be dealt into service tunnel and the interconnected tunnels of binode, and business is forwarded to the 5th node through service tunnel.
Two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when first node when being positioned at the 5th node transmission business datum of homonymy; When the 3rd node failure, comprising:
First node generation bridge joint, business is passed Section Point and the 4th node via first back closed loop protection tunnel, switches at the 4th node; Get into the interconnected tunnel of binode, turn to the interconnected tunnel of binode of second ring at the 4th node by the interconnected tunnel of binode of first ring, in second ring; The 4th node is the bridge contact of second ring simultaneously; Business is bridged to second back closed loop protection tunnel and sends, and via the 6th node and the 5th node, switches at the 5th node.
Two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when Section Point when being positioned at the 5th node transmission business datum of heteropleural; If the link failure of Section Point and the 4th node comprises:
Section Point generation bridge joint, professional first back closed loop protection tunnel that gets into transmits, and order is through first node, the 3rd node and the 4th node; The 4th node is a changeover points; Through the pre-configured two pair receipts functions of sending out of the 4th node, this moment, business was carried out two sending out, through the service tunnel between the 3rd node and the 4th node; And the interconnected tunnel of binode, business is forwarded to the 3rd node and the 5th node through the service tunnel between the 3rd node and the 4th node.
Two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when Section Point when being positioned at the 5th node transmission business datum of heteropleural; Link failure like the 3rd node and the 4th node comprises:
Business is sent to the 4th node through service tunnel, and bridge joint takes place, and business changes first back closed loop protection tunnel over to; Order is through Section Point, first node and the 3rd node; Switch at the 3rd node, get into service tunnel, business is forwarded to the 5th node.
Two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when Section Point when being positioned at the 5th node transmission business datum of heteropleural; Like the 3rd node failure, comprising:
Business is passed through Section Point and the 4th node through the service tunnel order; Be applied in two pair receipts functions of sending out of the 4th node configuration; Professional change the port of second ring over to through the interconnected tunnel of binode, and be bridged to second back closed loop protection tunnel and transmit, order is through the 4th node and the 6th node; Arrive the 5th node, and switch at the 5th node.
The implement device of dual node interconnection protection in a kind of Packet Transport Network comprises:
Dispensing unit is used for disposing back closed loop protection tunnel respectively at two interconnected rings of binode, and between interlink node, disposes the interconnected tunnel of binode, and said back closed loop protection tunnel is the share protect tunnel of interconnected tunnel of binode and service tunnel; Encircled when being positioned at a node of homonymy to second when a node of first ring in interconnected two rings of binode sends ring business, disposed the interconnected tunnel of said binode forms a U-shaped between two interlink nodes loop; Encircled when being positioned at a node of heteropleural to second when a node of first ring in interconnected two rings of binode sends ring business, and disposed the interconnected tunnel of said binode and between two interlink nodes, form a L shaped tunnel;
Path selection unit; Be used for when between two rings, transmitting ring professional; When link failure appearred in the service link between originator node and the receipts end node, data were transmitted through service tunnel or the back closed loop protection tunnel that interconnected tunnel of binode and/or back closed loop protection tunnel get into another ring.
The method and apparatus that the embodiment of the invention provided utilizes wrong the company to accomplish defencive function when dual node interconnection protection is realized, does not need the APS agreement, also need not dispose OAM, and business does not normally have does not need two sending out yet when switching, save bandwidth.Also reduced the difficulty of configuration in using.
Description of drawings
Fig. 1 is first kind of interconnected topological structure sketch map of binode in the prior art;
Fig. 2 is first kind of interconnected topological structure sketch map of binode in the prior art;
Fig. 3 is the flow chart of the implementation method of dual node interconnection protection in a kind of Packet Transport Network of the embodiment of the invention;
To be the embodiment of the invention sent ring concrete implementation structure figure when professional with side gusset to Fig. 4;
Fig. 5 is that embodiment of the invention heteropleural node sent concrete implementation structure figure when encircling business;
Fig. 6 is the structure chart of the implement device of dual node interconnection protection in a kind of Packet Transport Network of the embodiment of the invention.
Embodiment
The implementation method of dual node interconnection protection in a kind of Packet Transport Network of the embodiment of the invention; In interconnected two rings of binode, dispose back closed loop protection tunnel respectively; And between interlink node, disposing the interconnected tunnel of binode, said back closed loop protection tunnel is the share protect tunnel of interconnected tunnel of binode and service tunnel;
Professional when between two rings, transmitting ring; When link failure appearred in the service link between originator node and the receipts end node, data were transmitted through service tunnel or the back closed loop protection tunnel that interconnected tunnel of binode and back closed loop protection tunnel get into another ring.
Be elaborated below in conjunction with the Figure of description specific embodiments of the invention, the topology 2 among Fig. 1 can be regarded the stack (promptly think 3 rings successively intersect) of 2 topologys 1 as, so be example with topology 1 in the embodiment of the invention:
As shown in Figure 3, the implementation method of dual node interconnection protection in a kind of Packet Transport Network for dual node interconnection protection, is mainly protected two kinds of topologys, and is as shown in Figure 1.The stack that topology 2 can be regarded 2 topologys 1 as (thinking that promptly 3 rings intersect successively), so be that example describes with topology 1 in the embodiment of the invention:
Step 301, in interconnected two rings of binode, dispose back closed loop protection tunnel respectively, and between interlink node the interconnected tunnel of configuration binode, said back closed loop protection tunnel is the share protect tunnel of interconnected tunnel of binode and service tunnel;
Step 302, professional when between two rings, transmitting ring; When link failure appearred in the service link between originator node and the receipts end node, data were transmitted through service tunnel or the back closed loop protection tunnel that interconnected tunnel of binode and/or back closed loop protection tunnel get into another ring;
During professional in embodiments of the present invention the transmission; Can be divided into two kinds of situation and specifically comprise the ring business of the crossing transmission that encircles traffic transmission and heteropleural node with the mistake of side gusset; When the interconnected tunnel of configuration binode, the concrete form of expression maybe be different, but forming concrete passage can be:
Encircled when being positioned at a node of homonymy to second when a node of first ring in interconnected two rings of said binode sends ring business, the interconnected tunnel of said binode forms the loop of a U-shaped between two interlink nodes.
The concrete form in the interconnected tunnel of said binode can be; As shown in Figure 4; When node A sent the ring business to node E; The interconnected tunnel of binode of configuration does, the 3rd port that the 1st port, the 3rd port, the D of order through C order forms the interconnected tunnel of binode that is connected with last ring with the 1st port, the 4th port and formation of the 2nd port and the following interconnected tunnel of binode that is connected that encircles that the 2nd port, the 4th port, the D of ordering through C ordered; In addition, in the D point, also be provided with the interconnected tunnel of binode between the 1st port and the 2nd.
Encircled when being positioned at a node of heteropleural to second when a node of first ring in interconnected two rings of said binode sends ring business, the interconnected tunnel of said binode forms a L shaped tunnel between two interlink nodes.
The concrete form in the interconnected tunnel of said binode can be; As shown in Figure 5; To send ring professional when second ring is positioned at a node of heteropleural (, when Node B was sent the business of ring when arriving node E) when a node of first ring in interconnected two rings of said binode, and the interconnected tunnel of binode passes through the 4th port and the 2nd port that the 2nd port, the 4th port, D that C orders are ordered; In addition, in the D point, also be provided with the interconnected tunnel of binode between the 1st port and the 2nd.
With Fig. 4 and Fig. 5 is example, and the implementation method to dual node interconnection protection in a kind of Packet Transport Network of the embodiment of the invention further specifies:
One, cross the ring traffic transmission for homonymy, as shown in Figure 4:
(1) when the AC link down, bridge joint takes place in the A point, and professional first back closed loop protection tunnel (TP1) that gets into transmits; Through B-D-C, be changeover points at the C point, because TP1 is the share protect tunnel of TwUp and TcdUP; This moment, business was carried out two TwDn (towards to the E direction) that are dealt into; And TcdUp (towards the D direction) is because TcdUp and TcdDn form a closed loop, so business is sent to no longer forwarding behind the D point, business is forwarded to the E point through TwDn.
(2) when the CE link down, business is sent to the C point through A-C, at the C point bridge joint takes place, and traffic diversion second back closed loop protection tunnel (TP2) of TwDn sends, and via the D-F-E point, switches at the E point, and business is directly landed, and can not interrupt;
(3) when node C inefficacy, bridge joint takes place in the A point, and business is passed B-D via TP1, and the D point is last ring switching point; Switch at the D point, get into the interconnected tunnel of binode, turn to TcdDn by TcdUp at the D point, and in encircling down; The D point is the bridge contact that encircles down simultaneously, and this moment, business was bridged to down protection closed loop TP2 transmission, via F-E; Switch at the E point, directly land, business can not interrupted.
Two, cross the ring traffic transmission for heteropleural, as shown in Figure 5:
(1) when the BD link failure, bridge joint takes place in the B point, and the professional TP1 of entering transmits, and through A-C-D, be changeover points at D point, because D point has disposed two two receipts of sending out, business carries out pair being dealt into TwMi (towards the C direction) at this moment, and TcdDn, and business is forwarded to the C-E point through TwMi.Business can not interrupted.
(2) when the CD link failure, on encircle TwMi and bridge joint take place at the D point, business changes TP1 over to, through B-D-B-A-C, switches at the C point, gets into red tunnel TwMi, business is forwarded to the E point, business can not interrupted;
(3) when the CE link failure, professional through B-D-C, bridge joint takes place at C point, change over to and protect closed loop TP2, via D-F-E, to switch directly at the E point and to land, business can not interrupted;
(4) when node D inefficacy, at the B point bridge joint takes place, get into TP1 and transmit, via A-C, switch at the D point, get into TwDn (reverse towards E), send to the E point, the E point is switched, and directly lands, and business can not interrupted;
(5), professional by B-D when node C inefficacy; Owing to disposed two two receipts at the D point, so business enters into down ring via the interconnected tunnel of binode, the D point also is a bridge node in encircling down, is bridged to TP2 to transmit, and via D-F-E, switches at the E point, directly lands, and business can not be interrupted;
As shown in Figure 6, the embodiment of the invention also provides the implement device of dual node interconnection protection in a kind of Packet Transport Network, comprising:
Wherein, can be divided into two kinds of situation for crossing the ring business in the embodiment of the invention, specifically comprise the ring business of the crossing transmission that encircles traffic transmission and heteropleural node with the mistake of side gusset, concrete implementation is:
Said dispensing unit 601 also is used for a node when first ring of two interconnected rings of the binode ring business of sending and encircles when being positioned at a node of homonymy to second, disposes the interconnected tunnel of said binode forms a U-shaped between two interlink nodes loop.
Said dispensing unit 601 also is used for a node when first ring of two interconnected rings of the binode ring business of sending and encircles when being positioned at a node of heteropleural to second, disposes the interconnected tunnel of said binode and between two interlink nodes, forms a L shaped tunnel.
The embodiment of the invention proposes on interconnected equipment, not dispose the linear protection group; The interconnected tunnel of service tunnel and binode is 2 independently tunnels, but the protection tunnel of two shared looped networks in tunnel utilizes wrong the company to accomplish defencive function; Do not need the APS agreement; Need not dispose OAM yet, save bandwidth, reduce the difficulty of configuration in using yet.
Method of the present invention is not limited to the embodiment described in the embodiment, and those skilled in the art's technical scheme according to the present invention draws other execution mode, belongs to technological innovation scope of the present invention equally.Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1. the implementation method of dual node interconnection protection in the Packet Transport Network is characterized in that, comprising:
In interconnected two rings of binode, dispose back closed loop protection tunnel respectively, and between interlink node the interconnected tunnel of configuration binode, said back closed loop protection tunnel is the share protect tunnel of interconnected tunnel of binode and service tunnel;
Professional when between two rings, transmitting ring; When link failure appearred in the service link between originator node and the receipts end node, data were transmitted through service tunnel or the back closed loop protection tunnel that interconnected tunnel of binode and/or back closed loop protection tunnel get into another ring;
Wherein, encircled when being positioned at a node of homonymy to second when a node of first ring in interconnected two rings of said binode sends ring business, the interconnected tunnel of said binode forms the loop of a U-shaped between two interlink nodes; Encircled when being positioned at a node of heteropleural to second when a node of first ring in interconnected two rings of said binode sends ring business, the interconnected tunnel of said binode forms a L shaped tunnel between two interlink nodes.
2. the method for claim 1 is characterized in that, two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when first node when being positioned at the 5th node transmission business datum of homonymy; If the link failure of first node and the 3rd node comprises:
First node generation bridge joint; Professional first back closed loop protection tunnel that gets into transmits, and order is through first node, the 4th node and the 3rd node, and the 3rd node is a changeover points; This moment, business was carried out two be dealt into service tunnel and the interconnected tunnels of binode, and business is forwarded to the 5th node through service tunnel.
3. the method for claim 1 is characterized in that, two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when first node when being positioned at the 5th node transmission business datum of homonymy; When the 3rd node failure, comprising:
First node generation bridge joint, business is passed Section Point and the 4th node via first back closed loop protection tunnel, switches at the 4th node; Get into the interconnected tunnel of binode, turn to the interconnected tunnel of binode of second ring at the 4th node by the interconnected tunnel of binode of first ring, in second ring; The 4th node is the bridge contact of second ring simultaneously; Business is bridged to second back closed loop protection tunnel and sends, and via the 6th node and the 5th node, switches at the 5th node.
4. the method for claim 1 is characterized in that, two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when Section Point when being positioned at the 5th node transmission business datum of heteropleural; If the link failure of Section Point and the 4th node comprises:
Section Point generation bridge joint, professional first back closed loop protection tunnel that gets into transmits, and order is through first node, the 3rd node and the 4th node; The 4th node is a changeover points; Through the pre-configured two pair receipts functions of sending out of the 4th node, this moment, business was carried out two sending out, through the service tunnel between the 3rd node and the 4th node; And the interconnected tunnel of binode, business is forwarded to the 3rd node and the 5th node through the service tunnel between the 3rd node and the 4th node.
5. the method for claim 1 is characterized in that, two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when Section Point when being positioned at the 5th node transmission business datum of heteropleural; Link failure like the 3rd node and the 4th node comprises:
Business is sent to the 4th node through service tunnel, and bridge joint takes place, and business changes first back closed loop protection tunnel over to; Order is through Section Point, first node and the 3rd node; Switch at the 3rd node, get into service tunnel, business is forwarded to the 5th node.
6. the method for claim 1 is characterized in that, two interconnected rings of said binode comprise first node, Section Point, the 3rd node, the 4th node composition first ring; Second ring that the 3rd node, the 4th node, the 5th node and the 6th node are formed; Wherein the 3rd node and the 4th node are interlink node; Configuration first back closed loop protection tunnel in first ring, configuration second back closed loop protection tunnel in second ring, then when Section Point when being positioned at the 5th node transmission business datum of heteropleural; Like the 3rd node failure, comprising:
Business is passed through Section Point and the 4th node through the service tunnel order; Be applied in two pair receipts functions of sending out of the 4th node configuration; Professional change the port of second ring over to through the interconnected tunnel of binode, and be bridged to second back closed loop protection tunnel and transmit, order is through the 4th node and the 6th node; Arrive the 5th node, and switch at the 5th node.
7. the implement device of dual node interconnection protection in the Packet Transport Network is characterized in that, comprising:
Dispensing unit is used for disposing back closed loop protection tunnel respectively at two interconnected rings of binode, and between interlink node, disposes the interconnected tunnel of binode, and said back closed loop protection tunnel is the share protect tunnel of interconnected tunnel of binode and service tunnel; Encircled when being positioned at a node of homonymy to second when a node of first ring in interconnected two rings of binode sends ring business, disposed the interconnected tunnel of said binode forms a U-shaped between two interlink nodes loop; Encircled when being positioned at a node of heteropleural to second when a node of first ring in interconnected two rings of binode sends ring business, and disposed the interconnected tunnel of said binode and between two interlink nodes, form a L shaped tunnel;
Path selection unit; Be used for when between two rings, transmitting ring professional; When link failure appearred in the service link between originator node and the receipts end node, data were transmitted through service tunnel or the back closed loop protection tunnel that interconnected tunnel of binode and/or back closed loop protection tunnel get into another ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102521784A CN101741671B (en) | 2009-12-10 | 2009-12-10 | Method and device for realizing dual node interconnection protection in packet transport network |
| PCT/CN2010/072692 WO2010148805A1 (en) | 2009-12-10 | 2010-05-12 | Method and apparatus for implementing dual node interconnect protection in packet transmission network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102521784A CN101741671B (en) | 2009-12-10 | 2009-12-10 | Method and device for realizing dual node interconnection protection in packet transport network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101741671A CN101741671A (en) | 2010-06-16 |
| CN101741671B true CN101741671B (en) | 2012-07-04 |
Family
ID=42464598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102521784A Active CN101741671B (en) | 2009-12-10 | 2009-12-10 | Method and device for realizing dual node interconnection protection in packet transport network |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101741671B (en) |
| WO (1) | WO2010148805A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684973B (en) * | 2011-03-09 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of method and system of looped network protection |
| CN102739432A (en) * | 2011-03-30 | 2012-10-17 | 中兴通讯股份有限公司 | Transmission method and system of span-ring service |
| CN102868620B (en) * | 2011-07-06 | 2018-07-06 | 中兴通讯股份有限公司 | Transannular service protecting method and device |
| CN103812689B (en) * | 2012-11-15 | 2017-05-31 | 中国移动通信集团公司 | Business transmission protecting and device based on multiring structure network |
| CN105915371B (en) * | 2016-04-07 | 2019-03-26 | 烽火通信科技股份有限公司 | A kind of bicyclic escape realization method and system of PTN looped network protection |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101594191A (en) * | 2008-05-27 | 2009-12-02 | 华为技术有限公司 | The guard method of shared link interlinking ring network, system and interlink node |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100589353C (en) * | 2004-07-20 | 2010-02-10 | 中兴通讯股份有限公司 | Automatic protection switching method of two-fibre ring SDH system |
| CN100583702C (en) * | 2004-08-24 | 2010-01-20 | 华为技术有限公司 | Method for realizing four fibre loop multiplying segment protection management |
-
2009
- 2009-12-10 CN CN2009102521784A patent/CN101741671B/en active Active
-
2010
- 2010-05-12 WO PCT/CN2010/072692 patent/WO2010148805A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101594191A (en) * | 2008-05-27 | 2009-12-02 | 华为技术有限公司 | The guard method of shared link interlinking ring network, system and interlink node |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101741671A (en) | 2010-06-16 |
| WO2010148805A1 (en) | 2010-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4034782B2 (en) | Ring connection device and data transfer control method | |
| CN101710877B (en) | Method, device and system for processing traffic flow based on pseudowire | |
| US7043250B1 (en) | Systems and methods for forming and operating a communications network | |
| CN100459531C (en) | Method for notifying pseudo-lines fault based on bidirectional transmission detecting protocol | |
| US8854975B2 (en) | Scaling OAM for point-to-point trunking | |
| CN102752187B (en) | The method and system of elastic network interface | |
| JP4647835B2 (en) | Transmission apparatus and failure avoidance method | |
| CN101594191B (en) | Method and system for protecting shared link interlinking ring network and interlinking nodes | |
| CN102325037B (en) | A kind of changing method of pseudo-line dual homed network, system and dual-homed Provider Equipment | |
| EP3654664B1 (en) | Method for interconnected ring protection, computer-readable storage medium and computer program product | |
| CN102572905A (en) | Dual-homing protection switching method and system | |
| CN101741671B (en) | Method and device for realizing dual node interconnection protection in packet transport network | |
| CN103684951B (en) | A kind of ring network protection method and system | |
| CN101902353A (en) | Protecting method, device and system of packet network | |
| CN102035714B (en) | A kind of crossing tangent ring networks guard method and system | |
| CN102571426A (en) | Double-homing protection method and device | |
| CN102201985A (en) | Ring protection switching method adopting multi-protocol label switching transport profile (MPLS TP) and node | |
| CN101227370B (en) | Method for processing fault of transferring multi-protocol label switch sharing protection ring | |
| CN101674217B (en) | Method for realizing permanent ring network protection in MESH network | |
| CN104270231A (en) | System and method for realizing double-node interconnected pseudo-wire | |
| CN101783743B (en) | Business protection method and switching node | |
| CN100373866C (en) | Method of network fault recovery crossing over connections in multiple domains | |
| CN102611610A (en) | Method and system for centralized management of a plurality of tunnels with same path | |
| CN102148733A (en) | Protection method, device and system of intersected ring networks | |
| CN102185773B (en) | Multi-protocol label switching transport profile ring protection switching method and node |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |