CN102035714A - Intersected or tangent ring network protection method and system - Google Patents
Intersected or tangent ring network protection method and system Download PDFInfo
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- CN102035714A CN102035714A CN2010105940458A CN201010594045A CN102035714A CN 102035714 A CN102035714 A CN 102035714A CN 2010105940458 A CN2010105940458 A CN 2010105940458A CN 201010594045 A CN201010594045 A CN 201010594045A CN 102035714 A CN102035714 A CN 102035714A
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- looped network
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- 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
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- 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]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- 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
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
Abstract
The invention discloses intersected or tangent ring network protection method and system. A two-way working tunnel is allocated at an intersected or tangent node subjected to transannular guard; a ring network guard set is respectively established in each direction of the working tunnel; and TMSOAM detection is started in the directions of a two-way active link and a protection link. By adopting a two-way intersected or tangent ring network protection method based on T-MPLS (Transport Multi-protocol Label Switching) and provided by the invention, the interconnected link on a dual ring intersected or tangent node can be protected, the end-to-end protection of transannular service can be realized when an interconnected link has a fault, and the protection switching time is ensured to be not longer than 50ms.
Description
Technical field
The present invention relates to grouping conveying network looped network protection technical field, relate in particular to a kind of crossing tangent rings network protection method and system.
Background technology
Along with progressively popularizing and application of grouping conveying network, the user is also more and more higher to the demand of network reliability.In order to improve the survivability of network, protect networks mechanism is absolutely necessary.T-MPLS(Transport-Multi Protocol Label Switching transmits multiprotocol label switching) protection mainly contains linear protection and looped network protection.The looped network protection switching technical advantage mainly contains: the protection of the section of belonging to layer, save a large amount of LSP
(Label Switched Path, label switched path
)Entry number and configuration effort amount; Need not every LSP 3.3ms expense frame at interval, significantly improve the transmission bandwidth of service channel.
In grouping conveying network, business normally needs the transannular protection, is the double-ring intersecting protection as shown in Figure 1a, and Fig. 1 b is depicted as tangent protection.In the interconnected protection of dicyclo, for except intersect, other fault the tangent node, the employing looped network protection mechanism identical still with monocycle, protection mechanism should work alone in two rings, does not disturb mutually.
At present, most equipment have all only realized in monocycle protection, for intersect, under the situation that interconnected active link on the tangent node all lost efficacy, flow will interrupt, traffic affecting normally moves.Because the complexity that switching and protection group are safeguarded, there be limited evidence currently of has this application scenarios of product support, but with the linear common realization link protection of looped network stack, does not interrupt to guarantee business as far as possible.But when adopting this looped network to superpose linear mode; as shown in Figure 2; need increase the configuration in linear protection group and linear protection tunnel and increase linear work tunnel and linear protection tunnel TMP(T-MPLS Path in Node B and BB; the T-MPLS channel layer) OAM(Operation Administration and Maintenance; Operations,Administration And Maintenance) detects, therefore waste transmission bandwidth.In addition, all need to dispose the linear protection tunnel, be used for the exchange of linear protection tunnel label, therefore, need to increase a large amount of configuration effort amounts at each node (as the Node B among Fig. 2 a, C, D, E, DD, CC, BB) of protecting link direction.
Summary of the invention
The technical problem that the present invention solves provides a kind of crossing tangent rings network protection method and system, the interconnected link on protection double-ring intersecting, the tangent node.
For solving the problems of the technologies described above, the invention provides a kind of crossing tangent rings network protection method,
In intersecting or tangent node configuration two-way operation tunnel of transannular protection, and set up the looped network protection group respectively in each direction of described work tunnel.
Further, for double-ring intersecting or tangent node, in the west of described work tunnel to setting up the west respectively to looped network protection group and east orientation looped network protection group with east orientation;
After finishing networking, service traffics are walked described west to the active link of looped network protection group and the active link of described east orientation looped network protection group.
Further, described method also comprises:
All enable transmission multiprotocol label switching channel layer Operations,Administration And Maintenance (TMS OAM) detection in the direction of described active link and the direction of protection link.
Further, described method also comprises:
When breaking down or has carried out when forcing to switch to the looped network protection group in described west to the active link of looped network protection group in described west; service traffics are switched to the protection link of described west to the looped network protection group, and service traffics are walked the west to the protection link of looped network protection group and the active link of east orientation looped network protection group.
Further, described method also comprises:
When the active link of described east orientation looped network protection group breaks down or described east orientation looped network protection group has been carried out when forcing to switch; service traffics are switched to the protection link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the protection link of east orientation looped network protection group.
Further, described method also comprises:
Active link when from described west to the looped network protection group recovers; or has carried out when forcing back to cut to the looped network protection group in described west; service traffics are switched to the active link of described west to the looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
Further, described method also comprises:
Active link recovery when described east orientation looped network protection group; or described east orientation looped network protection group has been carried out when forcing back to cut; service traffics are switched to the active link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
The present invention also provides a kind of tangent Ring protection system that intersects, and described system comprises:
The bidirectional tunnel configuration module is used for configuration two-way operation tunnel on the crossing or tangent node of transannular protection;
The looped network protection module is used for setting up the looped network protection group respectively in each direction of described work tunnel.
Further, described looped network protection module is used for, for double-ring intersecting or tangent node, in the west of described work tunnel to setting up the west respectively to looped network protection group and east orientation looped network protection group with east orientation;
And configuration is finished service traffics after the networking and is given tacit consent to and walk described west to the active link of looped network protection group and the active link of described east orientation looped network protection group.
Further, described looped network protection module also is used for, and all enables TMS OAM detection in the direction of described active link and the direction of protection link.
Further, described looped network protection module also is used for, when breaking down or has carried out when forcing to switch to the looped network protection group in described west to the active link of looped network protection group in described west, service traffics are switched to the protection link of described west to the looped network protection group, and service traffics are walked the west to the protection link of looped network protection group and the active link of east orientation looped network protection group;
When the active link of described east orientation looped network protection group breaks down or described east orientation looped network protection group has been carried out when forcing to switch; service traffics are switched to the protection link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the protection link of east orientation looped network protection group.
Further, described looped network protection module also is used for, active link when from described west to the looped network protection group recovers, or has carried out when forcing back to cut to the looped network protection group in described west, service traffics are switched to the active link of described west to the looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group;
Active link recovery when described east orientation looped network protection group; or described east orientation looped network protection group has been carried out when forcing back to cut; service traffics are switched to the active link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
The present invention proposes a kind of based on T-MPLS intersect, the bidirectional protective method of tangent looped network protection, the interconnected link on protection double-ring intersecting, the tangent node.When interconnected link broke down, realization transannular business was protected end to end, and has guaranteed that protection switch time is not more than 50ms.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 a shows the networking scene according to two-way intersecting ring network protection of the present invention;
Fig. 1 b shows the networking scene according to two-way tangent looped network protection of the present invention;
Fig. 2 a shows according to the flow forward-path figure under the two ring intersecting ring network protection initial conditions of the present invention;
Fig. 2 b shows according to the flow forward-path figure under the tangent looped network protection initial condition of two rings of the present invention;
Fig. 3 a shows the flow forward-path figure according to two ring intersecting ring network protection scenes one of the present invention;
Fig. 3 b shows the flow forward-path figure according to the tangent looped network protection scene one of two rings of the present invention;
Fig. 4 a shows the flow forward-path figure according to two ring intersecting ring network protection scenes two of the present invention;
Fig. 4 b shows the flow forward-path figure according to the tangent looped network protection scene two of two rings of the present invention;
Fig. 5 a shows the flow forward-path figure according to two ring intersecting ring network protection scenes three of the present invention;
Fig. 5 b shows the flow forward-path figure according to the tangent looped network protection scene three of two rings of the present invention;
Fig. 6 a shows the flow forward-path figure according to two ring intersecting ring network protection scenes four of the present invention;
Fig. 6 b shows the flow forward-path figure according to the tangent looped network protection scene four of two rings of the present invention;
Fig. 7 shows and has described handling process crossing according to two rings of the embodiment of the invention, tangent looped network protection.
Embodiment
The key problem that the present invention solves is: in the interconnected protection of crossing tangent rings, under the situation that the active link on the crossing tangent node all lost efficacy, how to switch protection.For solving this technical problem, the present invention proposes a kind of crossing tangent looped network protection and changes method, and its core concept is, carries out business exchange processing mutually by two-way two separate looped network protection tunnels.
Based on above-mentioned thought, the present invention proposes a kind of crossing tangent rings network protection method, specifically adopts following technical scheme:
In intersecting or tangent node configuration two-way operation tunnel of transannular protection, and set up the looped network protection group respectively in each direction of described work tunnel.
Wherein, for double-ring intersecting or tangent node, in the west of described work tunnel to setting up the west respectively to looped network protection group and east orientation looped network protection group with east orientation;
After finishing networking, service traffics are walked described west to the active link of looped network protection group and the active link of described east orientation looped network protection group.
Whether in addition, also need all to enable TMS OAM detection in the direction (being also referred to as operative orientation) of described active link and the direction of protection link (being also referred to as the protection direction), it is good to be used for detecting each section of looped network layer connectivity.
Wherein, when breaking down or has carried out when forcing to switch to the looped network protection group in described west to the active link of looped network protection group in described west; service traffics are switched to the protection link of described west to the looped network protection group; service traffics are walked the west, and (active link herein is meant current professional effectively transfer path to the protection link of looped network protection group and the active link of east orientation looped network protection group; can be active link, also can be the protection link).
When the active link of described east orientation looped network protection group breaks down or described east orientation looped network protection group has been carried out when forcing to switch; service traffics are switched to the protection link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the protection link of east orientation looped network protection group.
Further; active link when from described west to the looped network protection group recovers; or has carried out when forcing back to cut to the looped network protection group in described west; service traffics are switched to the active link of described west to the looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
Further; active link recovery when described east orientation looped network protection group; or described east orientation looped network protection group has been carried out when forcing back to cut; service traffics are switched to the active link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
For the ease of setting forth the present invention, describe in further detail below with reference to the enforcement of drawings and the specific embodiments to technical solution of the present invention.Need to prove that under the situation of not conflicting, embodiment among the application and the feature among the embodiment be combination in any mutually.
Be illustrated in figure 1 as provided by the inventionly two-wayly intersect, the networking scene of tangent looped network protection; see also Fig. 1 a and Fig. 1 b; wherein two rings intersect, tangent P equipment disposition two looped network protection groups; lay respectively among East ring, the West ring, the protection tunnel of two looped network protection groups is not same protection tunnel.Other equipment among Fig. 1 are then according to normal monocycle configuration networking.
Fig. 2 show two-wayly intersect, the flow forward-path figure under the tangent looped network protection group initial condition, see also Fig. 2, wherein solid line is partly transmitted the operating path of process for present flow rate, under the initial condition is: two-way B＜--〉A＜--〉P＜--〉AA＜--BB; Dotted portion is the protection path that does not have flow, and east, west all are two-way closed loop link to the protection link.Among Fig. 2 a, the west to the protection link paths be B＜--〉C＜--〉D＜--〉E＜--〉P＜--〉A＜--B; East orientation protection link paths be BB＜--〉CC＜--〉DD＜--〉E＜--〉P＜--〉AA＜--BB.Among Fig. 2 b, the west to the protection link paths be B＜--〉C＜--〉D＜--〉E＜--〉P＜--〉A＜--B; East orientation protection link paths be BB＜--〉CC＜--〉DD＜--〉EE＜--〉P＜--〉AA＜--BB.
The crossing tangent looped network protection flow process of the embodiment of the invention mainly may further comprise the steps:
Step 1, two-way crossing, tangent looped network protection group initial condition, service traffics are walked the active link of East ring protection group and the active link of West ring protection group.
Step 2, the active link of West ring protection breaks down, be that west TMS exists loc alarm (loss of continuity, loss of connectivity), or West ring protection group has been carried out the pressure switching, then flow is switched to the protection link of West ring protection group, this moment, service traffics were walked the protection link of West ring protection group and the active link of East ring protection group;
Wherein, loc alarm specifically can detect by TMS OAM, and for example an equipment is given opposite equip. according to user configured cycle timed sending message, and then whether detect the connectedness of two equipment normal.
Step 3, on the basis of step 2, the active link of East ring protection group break down (be east TMS exist loc alarm), or East ring protection group has been carried out the pressure switching, then flow is switched to the protection link of East ring protection group, this moment, service traffics were walked the protection link of West ring protection group and the protection link of East ring protection group;
Step 4, on the basis of step 3, West ring protection group active link recovers (being west TMS loc alarm clearing), or West ring protection group has been carried out and is forced back to cut, then flow is switched to the active link of West ring protection group, this moment, service traffics were walked the active link of West ring protection group and the protection link of East ring protection group;
Step 5, on the basis of step 4, the active link of East ring protection group recovers (being east TMS loc alarm clearing), or East ring protection group has been carried out and is forced back to cut, then flow is switched to the active link of East ring protection group, this moment, service traffics were walked the active link of West ring protection group and the active link of East ring protection group;
As can be seen, through above-mentioned flow process, finished intersect, tangent P(Provider, service providing device) the various handoff scenario of equipment bidirectional loop network protection protection, and return to state at the beginning of the network construction.Need to prove that the order of fault appearance and recovery only is exemplary description in the above-mentioned steps, in actual applications, the west there is no certain sequencing to fault appearance and the recovery with east orientation.That is, some other situation, for example, and first east orientation fault, the west, back is to fault; Perhaps, the west is to fault earlier, and the west is to recovery then; And earlier the west is to fault, back east orientation fault, and east orientation recovers then, is the west again to recovering promptly, and western before this was the east orientation fault to fault again, etc., these situations are all possible.
Below in conjunction with several concrete application scenarioss ring net protection method of the present invention is described in detail.
Scene one
This scene is specially: the active link of West ring protection breaks down (being that west TMS exists the loc alarm), or West ring protection group has been carried out the pressure switching.
This scene switches to the protection link of West ring protection group with flow once, and this moment, service traffics were walked the protection link of West ring protection group and the active link of East ring protection group.Fig. 3 show two-wayly intersect, tangent looped network protection group is at this scene flow forward-path figure once, this moment service path be two-way B＜--〉A＜--〉B＜--〉C＜--〉D＜--〉E＜--〉P＜--〉AA＜--BB.
Scene two
This scene is specially: on the basis of above-mentioned scene one, the active link of East ring protection group breaks down (being that east TMS exists the loc alarm), or East ring protection group has been carried out the pressure switching.
This scene two times then switches to flow the protection link of East ring protection group, and this moment, service traffics were walked the protection link of West ring protection group and the protection link of East ring protection group.Fig. 4 a shows the flow forward-path figure of two-way intersecting ring network protection group under this scene two, this moment service path be B＜--〉A＜--〉B＜--〉C＜--〉D＜--〉E＜--〉P＜--〉E＜--〉DD＜--〉CC＜--〉BB＜--〉AA＜--BB.
Fig. 4 b shows the flow forward-path figure of two-way tangent looped network protection group under this scene, for: B＜--〉A＜--〉B＜--〉C＜--〉D＜--〉E＜--〉P＜--〉EE＜--〉DD＜--〉CC＜--〉BB＜--〉AA＜--〉BB.
Scene three
This scene is specially: on the basis of above-mentioned scene two, West ring protection group active link recovers (being west TMS loc alarm clearing), or West ring protection group has been carried out and forced back to cut.
This scene three times then switches to flow the active link of West ring protection group, and this moment, service traffics were walked the active link of West ring protection group and the protection link of East ring protection group.Fig. 5 a shows the flow forward-path figure of two-way intersecting ring network protection group under this scene three, this moment service path be two-way B＜--〉A＜--〉P＜--〉E＜--〉DD＜--〉CC＜--〉BB＜--〉AA＜--BB.
Fig. 5 b shows the flow forward-path figure of two-way tangent looped network protection group under this scene three, this moment service path be B＜--〉A＜--〉P＜--〉EE＜--〉DD＜--〉CC＜--〉BB＜--〉AA＜--BB.
Scene four
This scene is specially: on the basis of above-mentioned scene three, the active link of East ring protection group recovers (being east TMS loc alarm clearing), or East ring protection group has been carried out and forced back to cut.
This scene four times then switches to flow the active link of East ring protection group, and this moment, service traffics were walked the active link of West ring protection group and the active link of East ring protection group.Fig. 5 show two-wayly intersect, the flow forward-path figure of tangent looped network protection group under this scene four, get back to initial condition this moment, service path be two-way B＜--〉A＜--〉P＜--〉AA＜--BB.
By above scene description two-wayly intersect, the variation of the various scene down-off of tangent looped network protection group forward-path.
As shown in Figure 7, the embodiment of the invention provides intersects, the key step of the bidirectional protective method of tangent looped network protection is as follows:
Steps A. set up the TMPLS network, its networking diagram can be referring to Fig. 1, must stride two rings and be two-way in the work tunnel that intersects, dispose on the tangent node P equipment, each direction of work tunnel is protected with corresponding ring respectively, the TMS detection of setting up the looped network protection group and enabling TMPLS-OAM;
All the other equipment detect according to the TMS of networking situation configuration looped network protection group and TMPLS-OAM, and so far networks are completed;
Configuration for the P equipment of double-ring intersecting, tangent node; we suppose that the looped network protection group of a direction is that the west is to the looped network protection group; another direction is an east orientation looped network protection group; under the initial situation, service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
Break down (promptly there is the loc alarm in the west to TMS) to the active link of looped network protection in step B. west; or the pressure switching has been carried out to the looped network protection group in the west; then flow is switched to the west to the protection link of looped network protection group, service traffics were walked the west and were gone out to the protection link of looped network protection group and the active link of east orientation looped network protection group this moment.
Step C. is on the basis of step B; the active link of east orientation looped network protection group break down (be east orientation TMS exist loc alarm); or east orientation looped network protection group has been carried out when forcing to switch; then flow is switched to the protection link of east orientation looped network protection group, this moment service traffics walk the west go out to the protection link of looped network protection group and the protection link of east orientation looped network protection group.
Step D. is on the basis of step C; (promptly the west is to TMS loc alarm clearing) recovered to looped network protection group active link in the west; or has carried out when forcing back to cut to the looped network protection group in the west; then flow is switched to the west to the active link of looped network protection group, service traffics were walked the west and were gone out to the active link of looped network protection group and the protection link of east orientation looped network protection group this moment.
Step e. on the basis of step D; the active link of east orientation looped network protection group recovers (being east orientation TMS loc alarm clearing); or east orientation looped network protection group has been carried out when forcing back to cut; then flow is switched to the active link of east orientation looped network protection group, this moment service traffics walk the west go out to the active link of looped network protection group and the active link of east orientation looped network protection group.
Step F. through above-mentioned switching, finished two-wayly intersect, the various handoff scenario of tangent looped network protection, and return to state at the beginning of the network construction.
In addition, also provide a kind of tangent Ring protection system that intersects in the embodiment of the invention, this system mainly comprises:
The bidirectional tunnel configuration module is used for configuration two-way operation tunnel on the crossing or tangent node of transannular protection;
The looped network protection module is used for setting up the looped network protection group respectively in each direction of described work tunnel.
Further, described looped network protection module is used for, for double-ring intersecting or tangent node, in the west of described work tunnel to setting up the west respectively to looped network protection group and east orientation looped network protection group with east orientation;
And configuration is finished service traffics after the networking and is given tacit consent to and walk described west to the active link of looped network protection group and the active link of described east orientation looped network protection group.
Further, described looped network protection module also is used for, and all enables TMS OAM detection in the direction of described active link and the direction of protection link.
Further, described looped network protection module also is used for, when breaking down or has carried out when forcing to switch to the looped network protection group in described west to the active link of looped network protection group in described west, service traffics are switched to the protection link of described west to the looped network protection group, and service traffics are walked the west to the protection link of looped network protection group and the active link of east orientation looped network protection group;
When the active link of described east orientation looped network protection group breaks down or described east orientation looped network protection group has been carried out when forcing to switch; service traffics are switched to the protection link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the protection link of east orientation looped network protection group.
Further, described looped network protection module also is used for, active link when from described west to the looped network protection group recovers, or has carried out when forcing back to cut to the looped network protection group in described west, service traffics are switched to the active link of described west to the looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group;
Active link recovery when described east orientation looped network protection group; or described east orientation looped network protection group has been carried out when forcing back to cut; service traffics are switched to the active link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
It below only is preferred case study on implementation of the present invention; be not limited to the present invention; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, 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.
Claims (12)
1. a crossing tangent rings network protection method is characterized in that,
In intersecting or tangent node configuration two-way operation tunnel of transannular protection, and set up the looped network protection group respectively in each direction of described work tunnel.
2. the method for claim 1 is characterized in that,
For double-ring intersecting or tangent node, in the west of described work tunnel to setting up the west respectively to looped network protection group and east orientation looped network protection group with east orientation;
After finishing networking, service traffics are walked described west to the active link of looped network protection group and the active link of described east orientation looped network protection group.
3. method as claimed in claim 2 is characterized in that, described method also comprises:
All enable transmission multiprotocol label switching channel layer Operations,Administration And Maintenance (TMS OAM) detection in the direction of described active link and the direction of protection link.
4. method as claimed in claim 3 is characterized in that, described method also comprises:
When breaking down or has carried out when forcing to switch to the looped network protection group in described west to the active link of looped network protection group in described west; service traffics are switched to the protection link of described west to the looped network protection group, and service traffics are walked the west to the protection link of looped network protection group and the active link of east orientation looped network protection group.
5. method as claimed in claim 3 is characterized in that, described method also comprises:
When the active link of described east orientation looped network protection group breaks down or described east orientation looped network protection group has been carried out when forcing to switch; service traffics are switched to the protection link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the protection link of east orientation looped network protection group.
6. method as claimed in claim 4 is characterized in that, described method also comprises:
Active link when from described west to the looped network protection group recovers; or has carried out when forcing back to cut to the looped network protection group in described west; service traffics are switched to the active link of described west to the looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
7. method as claimed in claim 5 is characterized in that, described method also comprises:
Active link recovery when described east orientation looped network protection group; or described east orientation looped network protection group has been carried out when forcing back to cut; service traffics are switched to the active link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
8. one kind intersects tangent Ring protection system, it is characterized in that described system comprises:
The bidirectional tunnel configuration module is used for configuration two-way operation tunnel on the crossing or tangent node of transannular protection;
The looped network protection module is used for setting up the looped network protection group respectively in each direction of described work tunnel.
9. system as claimed in claim 8 is characterized in that,
Described looped network protection module is used for, for double-ring intersecting or tangent node, in the west of described work tunnel to setting up the west respectively to looped network protection group and east orientation looped network protection group with east orientation;
And configuration is finished service traffics after the networking and is given tacit consent to and walk described west to the active link of looped network protection group and the active link of described east orientation looped network protection group.
10. system as claimed in claim 9 is characterized in that,
Described looped network protection module also is used for, and all enables TMS OAM detection in the direction of described active link and the direction of protection link.
11. as claim 9 or 10 described systems, it is characterized in that,
Described looped network protection module also is used for, when breaking down or has carried out when forcing to switch to the looped network protection group in described west to the active link of looped network protection group in described west, service traffics are switched to the protection link of described west to the looped network protection group, and service traffics are walked the west to the protection link of looped network protection group and the active link of east orientation looped network protection group;
When the active link of described east orientation looped network protection group breaks down or described east orientation looped network protection group has been carried out when forcing to switch; service traffics are switched to the protection link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the protection link of east orientation looped network protection group.
12. as claim 9 or 10 described systems, it is characterized in that,
Described looped network protection module also is used for, active link when from described west to the looped network protection group recovers, or has carried out when forcing back to cut to the looped network protection group in described west, service traffics are switched to the active link of described west to the looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group;
Active link recovery when described east orientation looped network protection group; or described east orientation looped network protection group has been carried out when forcing back to cut; service traffics are switched to the active link of described east orientation looped network protection group, and service traffics are walked the west to the active link of looped network protection group and the active link of east orientation looped network protection group.
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| CN201010594045.8A CN102035714B (en) | 2010-12-17 | 2010-12-17 | A kind of crossing tangent ring networks guard method and system |
| PCT/CN2011/080734 WO2012079418A1 (en) | 2010-12-17 | 2011-10-13 | Method and system for intersecting or tangent ring network protection |
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| CN201010594045.8A CN102035714B (en) | 2010-12-17 | 2010-12-17 | A kind of crossing tangent ring networks guard method and system |
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Also Published As
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| CN102035714B (en) | 2016-03-30 |
| WO2012079418A1 (en) | 2012-06-21 |
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