CN1309216C - Method for controlling plane participation protective rotation in ASON network - Google Patents
Method for controlling plane participation protective rotation in ASON network Download PDFInfo
- Publication number
- CN1309216C CN1309216C CNB2004100806175A CN200410080617A CN1309216C CN 1309216 C CN1309216 C CN 1309216C CN B2004100806175 A CNB2004100806175 A CN B2004100806175A CN 200410080617 A CN200410080617 A CN 200410080617A CN 1309216 C CN1309216 C CN 1309216C
- Authority
- CN
- China
- Prior art keywords
- path
- protection
- signaling
- send
- control plane
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention relates to a protection switching method with the participation of a control plane in an automatic switched optical network (ASON). The method utilizes a general multiple protocol label switching (GMPLS) technique to establish a label switching path (LSP) in a network; the protection property of the LSP is used as one of conditions to be supplied to the control plane to carry out route selection operation so as to realize path protection and multiplex section protection with the participation of the control plane on ASON nodes. In the present invention, by utilizing the protection switching method with the participation of the control plane, protection switching with the participation of the control plane can be realized so as to be combined with distributed recovery to increase the survivability of the optical network and the flexibility of networking.
Description
Technical field
The present invention relates to the guard method of optical-fiber network, relate in particular to the protection reverse method that in ASON, participates in by control plane.
Background technology
(Automatically Switching Optical Network ASON) is meant that the SDH that is applied to G.803 define transmits net and the automatic switched transport network of the optical transfer network that G.872 defines to ASON.The ASON support exchanges connection, soft permanent connection and forever is connected three kinds of connections, and its network comprises transmission plane, control plane and three planes of management plane.
Protection in the conventional optical network can be divided into 1+1 trail protection (trail protection) protection, 1:N trail protection, M:N trail protection, SNCP (subnetwork connection protection, SNCP), 1+1 linear multiplex section protection, 1:N linear multiplex section protection, M:N linear multiplex section protection, two fibre two-way multi-section shared protection ring and Four-fiber MS shared protection rings.In above-mentioned various protection types; trail protection is also referred to as end-to-end protection (endto end protection) sometimes; SNCP belongs to the trail protection of segmentation; be a kind of special case of trail protection mode, and linear multiplex section protection and ring-type multiplex section protection all belong to two specific implementations of multiplex section protection.More than the description of all kinds of trail protections and multiplex section protection see (the International Telecommunication Union of International Telecommunications Union for details; ITU) relevant criterion; G.841, G.842, G.808.1, G.873.1, G.808.2 and G.873.2 in the standard definition being arranged all, do not repeat them here.Comprise management plane in the conventional optical network and transmit the plane, the above-mentioned various trail protections and the multiplex section protection of institute all are to be configured by management plane in the conventional optical network, specifically carry out by the transmission plane.For example, (automatical protection switching, APS) processor or transmission APS (APS) protocol message are realized by the transmission plane if need to provide APS in network.
Compare with traditional optical-fiber network, the ASON network has increased control plane.Because the introducing of control plane, the execution mode of switching for protection brings variation, and is promptly different with conventional optical network, the enforcement that the control plane that increases newly in the ASON network can the participation protective switch function.As for various trail protections or SNCP (SNCP), in ASON, can adopt by the control plane configuration, and realize by transmitting the mode of carrying out on the plane.For 1+1 linear multiplex section protection, 1:N linear multiplex section protection, M:N linear multiplex section protection, two fibre two-way multi-section shared protection ring and Four-fiber MS shared protection rings; its pairing link information is handled through the control plane of ASON apparatus for network node; then this information from flooding (flooding) is arrived whole network, with usefulness as distributed control.And above content does not all relate in the levels of standards of each standardization body.
Though the optical communication industry has progressively been found the necessity of above control plane participation protective specific implementation both at home and abroad, corresponding research just tentatively begins, and does not propose the corresponding techniques scheme as yet.Therefore, need switch the technical scheme that provides concrete to control plane participation protective among the ASON.
Summary of the invention
The object of the present invention is to provide the method that the control plane participation protective is switched in ASON, specifically, the invention provides the method for control plane participation trail protection, SNCP protection and multiplex section protection in ASON.
Know-why of the present invention is: utilize GMPLS (generalized multi-protoco labelswitch; GMPLS) technology or private network-network interface (Private Network-to-Network Interface; PNNI) technology; in ASON, set up label switched path (label switched path; LSP); when setting up LSP for a certain concrete traffic assignments mark; the protection attribute of the LSP that will set up offers control plane as one of condition and carries out the Route Selection computing; promptly in sending the signaling procedure of setting up LSP, signaling moiety will comprise LSP protection attribute information.Aspect trail protection, realize control plane configuration path protection on the ASON node, be operating path and protect the path to set up LSP respectively, by transmitting plane or the concrete execute protection of control plane; Aspect multiplex section protection; realize that control plane is realized the 1+1 linear multiplex section protection on the ASON node on link; the 1:N linear multiplex section protection; the M:N linear multiplex section protection; two fibre two-way multi-section shared protection ring and Four-fiber MS shared protection rings; the flag information of work with the multiplex section link flood at the whole network (flooding) will be distributed to; extra traffic is provided if desired; also need to be distributed in the whole network with the flag information of multiplex section link and to flood, set up on the link of corresponding multiplex section protection attribute according to the protection attribute specification of business and meet the LSP that protects attribute specification distributing to protection.
Control plane participates in the method that trail protection is switched in the ASON of the present invention, comprises step:
Control plane by source node is operating path and protection Path selection route, utilizes GMPLS or private network-network interface to be operating path and protection path allocation mark;
Sent the signaling of setting up operating path and sent the signaling of setting up the protection path by the source node control plane, set up the label switched path in operating path and protection path, this signaling comprises the protection attribute of label switched path;
Transmit the malfunction monitoring that the plane provides operating path and protection path by the place end node, when operating path lost efficacy and the protection path just often, be switched to the protection path from operating path.
The method that above-mentioned trail protection of the present invention is switched, wherein:
Transmission plane by each node on foundation path provides the APS processor;
APS message is transmitted on transmission plane by each node on foundation path.
The method that above-mentioned trail protection of the present invention is switched, wherein:
Control plane by each node on foundation path provides the APS processor;
Control plane and signaling communication network by each node on foundation path transmit APS message.
Above-mentioned trail protection reverse method of the present invention when wherein setting up operating path and protection path, sends the signaling of setting up operating path earlier by the source node control plane, sends the signaling of setting up the protection path then, sets up operating path and protection path.When wherein removing operating path and protection path, send the signaling of removing the protection path earlier, send the signaling of removing operating path then, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention when wherein setting up operating path and protection path, sends the signaling of setting up operating path earlier by the source node control plane, sends the signaling of setting up the protection path then, sets up operating path and protection path.When wherein removing operating path and protection path, send the signaling of removing the protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention when wherein setting up operating path and protection path, sends the signaling of setting up operating path and protection path simultaneously by the source node control plane, sets up operating path and protection path.When wherein removing operating path and protection path, send the signaling of removing the protection path earlier, send the signaling of removing operating path then, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention when wherein setting up operating path and protection path, sends the signaling of setting up operating path and protection path simultaneously by the source node control plane, sets up operating path and protection path.When wherein removing operating path and protection path, send the signaling of removing protection path and signaling and dismounting operating path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention wherein in the time need setting up the trail protection of 1:N, sends the signaling of setting up each bar operating path by the source node control plane successively, sets up N bar operating path, sends the signaling of setting up the protection path then.When wherein removing operating path and protection path, send the operating path that to remove or the signaling of protecting the path, remove the protection path or the operating path that need dismounting by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention wherein in the time need setting up the trail protection of 1:N, sends the signaling of setting up each bar operating path by the source node control plane successively, sets up N bar operating path, sends the signaling of setting up the protection path then.When wherein removing operating path and protection path, send the signaling of removing the protection path, send the signaling of removing operating path then successively, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention wherein in the time need setting up the trail protection of 1:N, sends the signaling of setting up N bar operating path by the source node control plane successively, sets up N bar operating path, sends the signaling of setting up the protection path then.When wherein removing operating path and protection path, send the signaling of removing all working path and protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention wherein in the time need setting up the trail protection of 1:N, sends the signaling of setting up N bar operating path and protection path by the source node control plane simultaneously, sets up N bar operating path and 1 protection path.When wherein removing operating path and protection path, send the operating path that to remove or the signaling of protecting the path, remove the protection path and the operating path that need dismounting by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention wherein in the time need setting up the trail protection of 1:N, sends the signaling of setting up N bar operating path and protection path by the source node control plane simultaneously, sets up N bar operating path and 1 protection path.When wherein removing operating path and protection path, send the signaling of removing the protection path, send the signaling of removing operating path then successively, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention wherein in the time need setting up the trail protection of 1:N, sends the signaling of setting up N bar operating path and protection path by the source node control plane simultaneously, sets up N bar operating path and 1 protection path.When wherein removing operating path and protection path, send the signaling of removing all working path and protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention; wherein in the time need setting up the trail protection of M:N; send the signaling of setting up each bar operating path successively by the source node control plane; set up N bar operating path; send then and send the signaling of setting up each bar protection path successively, set up M bar protection path.When wherein removing operating path and protection path, send the operating path that to remove or the signaling of protecting the path, remove the protection path and the operating path that need dismounting by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention; wherein in the time need setting up the trail protection of M:N; send the signaling of setting up each bar operating path successively by the source node control plane; set up N bar operating path; send then and send the signaling of setting up each bar protection path successively, set up M bar protection path.When wherein removing operating path and protection path, send the signaling of removing the protection path successively, send the signaling of removing operating path then successively, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention; wherein in the time need setting up the trail protection of M:N; send the signaling of setting up each bar operating path successively by the source node control plane; set up N bar operating path; send then and send the signaling of setting up each bar protection path successively, set up M bar protection path.When wherein removing operating path and protection path, send the signaling of removing all working path and protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
Above-mentioned trail protection reverse method of the present invention; wherein in the time need setting up the trail protection of M:N; send the signaling of setting up N bar operating path simultaneously and set up the signaling that the M bar is protected the path by the source node control plane, set up N bar operating path and M bar protection path.When wherein removing operating path and protection path, send the operating path that to remove or the signaling of protecting the path, remove the protection path and the operating path that need dismounting by source node, destination node or intermediate node control plane.
At above-mentioned trail protection reverse method of the present invention; wherein in the time need setting up the trail protection of M:N; send the signaling of setting up N bar operating path simultaneously and set up the signaling that the M bar is protected the path by the source node control plane, set up N bar operating path and M bar protection path.When wherein removing operating path and protection path, send the signaling of removing the protection path successively, send the signaling of removing operating path then successively, remove protection path and operating path by source node, destination node or intermediate node control plane.
At above-mentioned trail protection reverse method of the present invention; wherein in the time need setting up the trail protection of M:N; send the signaling of setting up N bar operating path simultaneously and set up the signaling that the M bar is protected the path by the source node control plane, set up N bar operating path and M bar protection path.When wherein removing operating path and protection path, send the signaling of removing all working path and protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
Control plane participates in the method for multiplex section protection exchanging in the ASON of the present invention, comprises step:
Use multiplex section link and protection to use the multiplex section link by management plane configuration effort in link, utilizing GMPLS or private network-network interface is that work is used multiplex section and protected with multiplex section link assignment mark;
The work of distributing to floods in whole network with the label information of multiplex section link;
Be emitted in the signaling of setting up label switched path on the link by the source node control plane, this signaling comprises the protection attribute of label switched path, sets up the label switched path that meets this protection attribute;
Transmission plane by each node on foundation label switched path provides multiplex section APS processor;
Transmit multiplex section APS message by the transmission plane of each node on foundation label switched path;
When needs are carried out multiplex section protection, carry out corresponding multiplex section protection exchanging according to the APS message of being transmitted by the transmission plane of being set up on each label switched path.
Control plane participates in the method for multiplex section protection exchanging in the ASON of the present invention, comprises step:
Use multiplex section link and protection to use the multiplex section link by management plane configuration effort in link, utilizing GMPLS or private network-network interface is that work is used the multiplex section link and protected with multiplex section link assignment mark;
The work of distributing to floods in whole network with the label information of multiplex section link;
Be emitted in the signaling of setting up label switched path on the link by the source node control plane, this signaling comprises the protection attribute of label switched path, sets up the label switched path that meets this protection attribute;
Control plane by each node on foundation label switched path provides multiplex section APS processor;
Control plane and signaling communication network by each node on foundation label switched path transmit multiplex section APS message;
When needs are carried out multiplex section protection, carry out corresponding multiplex section protection exchanging according to the APS message of being transmitted by the transmission plane of being set up on each label switched path.
Control plane participates in the method for multiplex section protection exchanging in the above-mentioned ASON of the present invention; wherein under the situation that realizes 1:N linear multiplex section protection, M:N linear multiplex section protection, four-fiber bidirectional multi-section shared protection; when providing extra traffic with the multiplex section link, distribute to the label information of protecting with the multiplex section link and also flood in whole network by protection.
Control plane participates in the method for multiplex section protection exchanging in the above-mentioned ASON of the present invention; wherein when realizing that two fibre two-way multi-sections are shared ring protection; half mark is used for the foundation of label switched path on every direction link, and second half mark remains for two fibre two-way multi-section shared protections in advance.
Control plane participates in the method for multiplex section protection exchanging in the above-mentioned ASON of the present invention; wherein when realizing that the four-fiber bidirectional multiplex section is shared ring protection; the two two-way links work of being assigned to multiplex section link fully wherein, two two-way links are assigned to protection multiplex section link fully in addition.
The protection that utilizes method of the present invention to realize that in the ASON network control plane participates in is switched, can be to the distributed control of whole network using, thus distribution type restoration can be provided, increased the survivability of optical-fiber network and the flexibility of networking.The protection switching technique scheme that control plane of the present invention participates in is for the survivability and the networking flexibility of ASON network provides enforceable concrete technical scheme.
Description of drawings
Fig. 1 is the 1+1 trail protection example that adopts the control plane participation of the inventive method;
Fig. 2 is the 1+1 linear multiplex section protection example that adopts the control plane participation of the inventive method;
Fig. 3 is the 1:2 linear multiplex section protection example that adopts the control plane participation of the inventive method;
Fig. 4 adopts the control plane of the inventive method to participate in the shared ring protection example of two fibre two-way multi-sections;
Fig. 5 adopts the control plane of the inventive method to participate in the shared ring protection example of four-fiber bidirectional multiplex section.
Embodiment
Below in conjunction with the represented concrete example of accompanying drawing, be further explained in detail concrete working method of the present invention.
When path protecting method of the present invention disposes the 1+1 trail protection by control plane, be work and protection path routing simultaneously at source node.The signaling procedure that work and protection path are set up can be initiated simultaneously, also can work earlier and afterwards protect.The signaling procedure of work and the deletion of protection path can be initiated simultaneously, also can protect afterwards earlier and work.Signaling procedure also can be finished the deletion of only protecting the path, or only protects the foundation in path.
When path protecting method of the present invention disposes the trail protection of 1:N or M:N by control plane, select N bar operating path simultaneously and select 1 or M bar protection path simultaneously at source node at source node.The signaling procedure that work and protection path are set up can be initiated simultaneously, also can set up N bar operating path earlier one by one, sets up 1 or set up N bar protection path one by one then.The signaling procedure of work and the deletion of protection path can be initiated simultaneously, also can protect afterwards earlier and work.Signaling procedure also can be finished the deletion in a certain protection path, the foundation in the protection path of a perhaps a certain increase.
Path protecting method of the present invention finished by control plane routing and signaling procedure 1+1 trail protection, 1:N or M:N trail protection configuration and set up after, the trail protection of concrete 1+1 trail protection, 1:N or M:N is finished transmitting the plane.If both protection needed the APS agreement, transmit the plane so APS is provided processor, finish the transmission of APS protocol message.
Path protecting method of the present invention finished by control plane routing and signaling procedure 1+1 trail protection, 1:N or M:N trail protection configuration and set up after, the trail protection of the trail protection of concrete 1+1,1:N or M:N is finished at control plane.If both protection needed the APS agreement, control plane provides APS processor so, and control plane and signaling communication network (SCN, Signalling Communication Network) are finished the transmission of APS protocol message.
Multiplex section protection method of the present invention is for the 1+1 linear multiplex section protection, and service signal is concurrent at the source end, receives at Su Duanxuan.The branch that unidirectional 1+1 linear multiplex section protection and two-way 1+1 linear multiplex section protection are arranged.Unidirectional 1+1 linear multiplex section protection does not need APS agreement and APS processor, and two-way 1+1 linear multiplex section protection needs APS agreement and APS processor.The 1+1 linear multiplex section protection can not be supported extra traffic, so its work floods in the whole network with the label information that the multiplex section link is distributed, protection does not flood with multiplex section link institute distribute labels.
Multiplex section protection method of the present invention has the branch of unidirectional and two-way 1:N linear multiplex section protection equally for the 1:N linear multiplex section protection, all needs to move the APS agreement, needs the APS processor.Under the 1:N linear multiplex section protection situation, the work of distributing on the link floods at the whole network with the label information of multiplex section link.Because the 1:N linear multiplex section protection is supported extra traffic, also in the whole network, flood again, use when setting up LSP for extra traffic so distribute to the label information of protecting with the multiplex section link on the link.
Multiplex section protection method of the present invention has the branch of unidirectional and two-way M:N linear multiplex section protection equally for the M:N linear multiplex section protection, all needs to move the APS agreement, needs the APS processor.Under the M:N linear multiplex section protection situation, the work of distributing on the link floods at the whole network with the label information of multiplex section link.Because the M:N linear multiplex section protection is supported extra traffic, in the whole network, flood again, use when setting up LSP for extra traffic so distribute to the label information of protecting with the multiplex section link on the link.
Multiplex section protection method of the present invention is shared ring protection for two fibre two-way multi-sections, between per two nodes a pair of two-way link is arranged.In every link, there is half mark to be assigned with use mark, second half mark to be used to protect and uses mark as work.Two fibre two-way multi-sections are shared under the environmental protection retaining ring situation, and working in the link floods in the whole network with mark institute distribute labels information.
Share ring protection for the four-fiber bidirectional multiplex section, between per two nodes two pairs of two-way links are arranged.A pair of link is by the work of being assigned as multiplex section link fully, and another is assigned as protection multiplex section link fully to link.The four-fiber bidirectional multiplex section is shared under the environmental protection retaining ring situation, and work floods in the whole network with the label information of multiplex section link, and protection simultaneously also floods in the whole network with the label information of multiplex section link, with the usefulness as extra traffic foundation.
The present invention is control plane participation protective reverse method in the ASON network; GMPLS (GMPLS) or private network-network interface (PNNI) have been adopted; at first when source node is selected route; the protection attribute information of the LSP that will set up offers the constraint that control plane moved on the node as constraints and selects routing algorithm.Constraint selects routing algorithm to give signaling according to the demonstration route that the label information that floods among the ASON and constraints calculate LSP, is initiated the road construction process of LSP by signaling.Different with general road construction process is to carry the protection attribute of this LSP at signaling moiety.Tear open and pass by tearing open of journey and standard to pass by journey just the same.Can't satisfy the situation of protection attribute constraints at the routing algorithm, need to increase a kind of error message feedback, be because protection attribute constraints can't satisfy to feed back that this LSP can't set up.
Signaling is being set up and is being removed in the process of LSP, and ASON node local resource allocation will be observed certain strategy.For working LSP, can only distribute to belong to operating path or work with the mark in the multiplex section link, can not distribute to belong to protection path or protection mark with the multiplex section link.For extra traffic, can only distribute the protection path or protect with the mark in the multiplex section link can not share out the work path or the work mark in the multiplex section link.Adopt under the GMPLS situation in the present invention, mark has just been represented the resource in the ASON network, for example time slot.
Following accompanying drawing is for several special cases of utilization the inventive method, so that better explain technical scheme of the present invention.
Figure 1 shows that the example that adopts the inventive method in the ASON network, to realize the 1+1 trail protection.Figure 1 shows that source node is 8, destination node is a unidirectional LSP of 3.Operating path by the control plane configuration is 8-1-9-3, and the protection path is 8-7-6-5-4-3.At source node 8, business is sent simultaneously by operating path and protection path, carries out the selective reception in operating path and protection path at destination node 3.In the present embodiment, above operating path and protection path are set up by signaling procedure by control plane.After source node 8 calculates this work and protects the path, will work and protect the demonstration route in path to give the control plane signalling module, signalling module is set up work and is protected the path according to demonstration route hop-by-hop.Delete procedure is also finished by the control plane signalling module.For two-way 1+1 trail protection, need APS processor and APS agreement, can provide by transmitting the plane, also can provide by control plane.
Fig. 2 participates in 1+1 linear multiplex section protection example for the control plane that adopts the inventive method.In network topology shown in Figure 2, the chain route control plane between the node 1 and 9,9 and 5 is configured to the 1+1 linear multiplex section protection.Work is arranged with one of multiplex section link between the node 1 and 9,9 and 5, protect with one of multiplex section link.The source node of link sends business with the multiplex section link, the destination node selective reception by work simultaneously with multiplex section link and protection.Opinion in node 1 and 5 shown in Figure 2 has been set up a LSP, and the protection attribute that this LSP requires is the 1+1 linear multiplex section protection.So when source node 1 routing, the constraints according to the protection attribute calculates route.Set up professional LSP by signaling between node 1 and node 5 then, wherein signaling procedure is through node 9.During the mark of road construction process distributes, the mark distribution function of node this locality will be worked and be distributed to business LSP with the mark in the multiplex section link.Set up another LSP for extra traffic if desired, then will protect and distribute to this LSP with the mark in the multiplex section link.For two-way 1+1 linear multiplex section protection, need APS processor and APS agreement, can provide by transmitting the plane, also can provide by control plane.
Fig. 3 is that control plane of the present invention participates in 1:N (N=2 in this example) linear multiplex section protection example.In network topology shown in Figure 3, the chain route control plane between the node 1 and 9 is configured to the 1:2 linear multiplex section protection.Work is arranged with two of multiplex section links between the node 1 and 9, protect with one of multiplex section link.Opinion in node 1 and 9 shown in Figure 3 has been set up a LSP, and the protection that this LSP requires is the 1:2 linear multiplex section protection.So when source node 1 routing, the constraints according to this LSP protection attribute calculates route.Between node 1 and node 9, set up LSP by signaling then.During the mark of road construction process distributes, the mark distribution function of node this locality will be worked and be distributed to LSP with the mark in the multiplex section link.Set up the LSP of an extra traffic attribute if desired, then will protect with the mark in the multiplex section link and distribute to this extra traffic LSP.For the 1:2 linear multiplex section protection, need APS processor and APS agreement, can provide by transmitting the plane, also can provide by control plane.
Fig. 4 is the two fibre two-way multi-section shared protection ring examples that the control plane of the inventive method participates in.In topology shown in Figure 4, between per two adjacent nodes a pair of two-way link is arranged.Have the mark of half to be allocated for work multiplex section link in every link, second half mark is allocated for protection multiplex section link.When between node 1 and node 3, setting up a bidirectional LSP that requires two-fiber MS shared protection ring protection; source node is that constraints calculates route (1-2-3) with the protection attribute of this bidirectional LSP; set up LSP by signaling between node 1 and node 3, wherein signaling is by intermediate node 2.During the mark of road construction process distributed, the mark distribution function of node this locality was distributed to this LSP with the work in the link with the mark of multiplex section link.For two-fiber MS shared protection ring, need APS processor and APS agreement, provide this function by transmitting plane or control plane.
Fig. 5 is the Four-fiber MS shared protection ring example that the control plane of the inventive method participates in.In topology shown in Figure 5, between per two adjacent nodes two pairs of two-way links are arranged, wherein two links (two-way) are assigned to work multiplex section link fully, and two links (two-way) are assigned to protection multiplex section link fully in addition.When between node 1 and node 3, setting up a bidirectional LSP that requires the ring protection of four fiber complex section share protect; source node is that constraints calculates route (1-2-3) with the protection attribute of this LSP; set up LSP by signaling between node 1 and node 3, wherein signaling is by intermediate node 2.During the mark of road construction process distributes, the mark distribution function of node this locality will be worked and be distributed to this LSP with the mark of multiplex section link.For the LSP of extra traffic attribute, then will protect with the mark in the multiplex section link and distribute to this extra traffic LSP.For the four fiber complex section protection rings, need APS processor and APS agreement, provide this function by transmitting plane or control plane.
Claims (17)
1. control plane participates in the method that trail protection is switched in the ASON, comprises step:
Control plane by source node is operating path and protection Path selection route, utilizes GMPLS or private network-network interface to be operating path and protection path allocation mark;
Sent the signaling of setting up operating path and sent the signaling of setting up the protection path by the source node control plane, set up the label switched path in operating path and protection path, this signaling comprises the protection attribute of label switched path;
The APS processor is provided, transmits APS message by the control plane of each node on foundation path by the control plane and the signaling communication network of each node on foundation path;
Transmit the malfunction monitoring that the plane provides operating path and protection path by the place end node, when operating path lost efficacy and the protection path just often, be switched to the protection path from operating path.
2. according to the above-mentioned trail protection reverse method of claim 1, when wherein setting up operating path and protection path, send the signaling of setting up operating path earlier by the source node control plane, send the signaling of setting up the protection path then, set up operating path and protection path; When wherein removing operating path and protection path, send the signaling of removing the protection path earlier, send the signaling of removing operating path then, remove protection path and operating path by source node, destination node or intermediate node control plane.
3. according to the above-mentioned trail protection reverse method of claim 1, when wherein setting up operating path and protection path, send the signaling of setting up operating path earlier by the source node control plane, send the signaling of setting up the protection path then, set up operating path and protection path; When wherein removing operating path and protection path, send the signaling of removing the protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
4. according to the above-mentioned trail protection reverse method of claim 1, when wherein setting up operating path and protection path, send the signaling of setting up operating path and protection path simultaneously, set up operating path and protection path by the source node control plane; When wherein removing operating path and protection path, send the signaling of removing the protection path earlier, send the signaling of removing operating path then, remove protection path and operating path by source node, destination node or intermediate node control plane.
5. according to the above-mentioned trail protection reverse method of claim 1, when wherein setting up operating path and protection path, send the signaling of setting up operating path and protection path simultaneously, set up operating path and protection path by the source node control plane; When wherein removing operating path and protection path, send the signaling of removing protection path and signaling and dismounting operating path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
6. according to the above-mentioned trail protection reverse method of claim 1, wherein in the time need setting up the trail protection of 1:N, send the signaling of setting up each bar operating path successively by the source node control plane, set up N bar operating path, send the signaling of setting up the protection path then; When wherein removing operating path and protection path, send the operating path that to remove or the signaling of protecting the path, remove the protection path or the operating path that need dismounting by source node, destination node or intermediate node control plane.
7. according to the above-mentioned trail protection reverse method of claim 1, wherein in the time need setting up the trail protection of 1:N, send the signaling of setting up each bar operating path successively by the source node control plane, set up N bar operating path, send the signaling of setting up the protection path then; When wherein removing operating path and protection path, send the signaling of removing the protection path, send the signaling of removing operating path then successively, remove protection path and operating path by source node, destination node or intermediate node control plane.
8. according to the above-mentioned trail protection reverse method of claim 1, wherein in the time need setting up the trail protection of 1:N, send the signaling of setting up N bar operating path successively by the source node control plane, set up N bar operating path, send the signaling of setting up the protection path then; When wherein removing operating path and protection path, send the signaling of removing all working path and protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
9. according to the above-mentioned trail protection reverse method of claim 1, wherein in the time need setting up the trail protection of 1:N, send the signaling of setting up N bar operating path and protection path simultaneously, set up N bar operating path and 1 protection path by the source node control plane; When wherein removing operating path and protection path, send the operating path that to remove or the signaling of protecting the path, remove the protection path and the operating path that need dismounting by source node, destination node or intermediate node control plane.
10. according to the above-mentioned trail protection reverse method of claim 1, wherein in the time need setting up the trail protection of 1:N, send the signaling of setting up N bar operating path and protection path simultaneously, set up N bar operating path and 1 protection path by the source node control plane; When wherein removing operating path and protection path, send the signaling of removing the protection path, send the signaling of removing operating path then successively, remove protection path and operating path by source node, destination node or intermediate node control plane.
11. according to the above-mentioned trail protection reverse method of claim 1, wherein in the time need setting up the trail protection of 1:N, send the signaling of setting up N bar operating path and protection path simultaneously, set up N bar operating path and 1 protection path by the source node control plane; When wherein removing operating path and protection path, send the signaling of removing all working path and protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
12. above-mentioned trail protection reverse method according to claim 1, wherein in the time need setting up the trail protection of M:N, send the signaling of setting up each bar operating path successively by the source node control plane, set up N bar operating path, send then and send the signaling of setting up each bar protection path successively, set up M bar protection path; When wherein removing operating path and protection path, send the operating path that to remove or the signaling of protecting the path, remove the protection path and the operating path that need dismounting by source node, destination node or intermediate node control plane.
13. above-mentioned trail protection reverse method according to claim 1, wherein in the time need setting up the trail protection of M:N, send the signaling of setting up each bar operating path successively by the source node control plane, set up N bar operating path, send then and send the signaling of setting up each bar protection path successively, set up M bar protection path; When wherein removing operating path and protection path, send the signaling of removing the protection path successively, send the signaling of removing operating path then successively, remove protection path and operating path by source node, destination node or intermediate node control plane.
14. above-mentioned trail protection reverse method according to claim 1, wherein in the time need setting up the trail protection of M:N, send the signaling of setting up each bar operating path successively by the source node control plane, set up N bar operating path, send then and send the signaling of setting up each bar protection path successively, set up M bar protection path; When wherein removing operating path and protection path, send the signaling of removing all working path and protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
15. above-mentioned trail protection reverse method according to claim 1, wherein in the time need setting up the trail protection of M:N, send the signaling of setting up N bar operating path simultaneously and set up the signaling that the M bar is protected the path by the source node control plane, set up N bar operating path and M bar protection path; When wherein removing operating path and protection path, send the operating path that to remove or the signaling of protecting the path, remove the protection path and the operating path that need dismounting by source node, destination node or intermediate node control plane.
16. above-mentioned trail protection reverse method according to claim 1, wherein in the time need setting up the trail protection of M:N, send the signaling of setting up N bar operating path simultaneously and set up the signaling that the M bar is protected the path by the source node control plane, set up N bar operating path and M bar protection path; When wherein removing operating path and protection path, send the signaling of removing the protection path successively, send the signaling of removing operating path then successively, remove protection path and operating path by source node, destination node or intermediate node control plane.
17. above-mentioned trail protection reverse method according to claim 1, wherein in the time need setting up the trail protection of M:N, send the signaling of setting up N bar operating path simultaneously and set up the signaling that the M bar is protected the path by the source node control plane, set up N bar operating path and M bar protection path; When wherein removing operating path and protection path, send the signaling of removing all working path and protection path simultaneously, remove protection path and operating path by source node, destination node or intermediate node control plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100806175A CN1309216C (en) | 2004-10-08 | 2004-10-08 | Method for controlling plane participation protective rotation in ASON network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100806175A CN1309216C (en) | 2004-10-08 | 2004-10-08 | Method for controlling plane participation protective rotation in ASON network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1588890A CN1588890A (en) | 2005-03-02 |
| CN1309216C true CN1309216C (en) | 2007-04-04 |
Family
ID=34605100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100806175A Expired - Fee Related CN1309216C (en) | 2004-10-08 | 2004-10-08 | Method for controlling plane participation protective rotation in ASON network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1309216C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011116594A1 (en) * | 2010-03-25 | 2011-09-29 | 中兴通讯股份有限公司 | Signaling control method and system for service establishment based on g.709 |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322713C (en) * | 2005-04-15 | 2007-06-20 | 清华大学 | Method for enhancing survivability of automatic exchange optical network |
| CN100369419C (en) * | 2005-07-14 | 2008-02-13 | 广东省电信有限公司研究院 | Method for realizing connected reinforced main-apparatus protection in automatic exchange optical network |
| US7466916B2 (en) * | 2005-07-23 | 2008-12-16 | Alcatel-Lucent Usa Inc. | Hybrid optical and data networks |
| CN100385891C (en) * | 2005-11-17 | 2008-04-30 | 华为技术有限公司 | Method and apparatus for realizing group protection in MPLS network |
| CN101009636B (en) * | 2006-01-26 | 2010-08-25 | 华为技术有限公司 | Dynamic management method for the multicast service members of the automatic switching optical network |
| CN1889397B (en) * | 2006-07-18 | 2010-05-12 | 华为技术有限公司 | Method for establishing business path in intelligent optical network |
| CN101170482B (en) * | 2006-10-26 | 2010-07-07 | 中兴通讯股份有限公司 | Method for realizing SPC activation/deactivation via control plane in ASON network |
| CN100426754C (en) * | 2006-11-13 | 2008-10-15 | 华为技术有限公司 | A method to realize protection switching of stream media and system |
| CN101192883A (en) * | 2006-11-21 | 2008-06-04 | 华为技术有限公司 | Multicast protection method in WDM optical network |
| CN101222350B (en) * | 2007-01-12 | 2011-08-24 | 华为技术有限公司 | Protection switching decision method and system |
| CN101022449B (en) * | 2007-03-13 | 2010-09-08 | 华为技术有限公司 | Method, system and nodal equipment for establishing bypass LSP |
| CN101052235B (en) * | 2007-05-08 | 2010-11-10 | 华为技术有限公司 | Business combing method and device for ASON special protection |
| CN101170494B (en) * | 2007-11-21 | 2010-06-02 | 中兴通讯股份有限公司 | Soft rerouting method in automatic switching optical network |
| CN101459565B (en) * | 2007-12-13 | 2012-06-27 | 华为技术有限公司 | Recovery method, device and network node for multiplexing protection service |
| CN101459610B (en) * | 2008-12-18 | 2011-05-25 | 北京邮电大学 | Routing apparatus and method oriented to multi-layer multi-domain distributed optical network |
| CN101534459B (en) * | 2009-04-22 | 2011-12-28 | 中兴通讯股份有限公司 | Method and system for realizing protection and recovery in automatic switched optical network |
| CN101902353B (en) * | 2009-05-31 | 2013-06-12 | 华为技术有限公司 | Protecting method, device and system of packet network |
| CN101964927B (en) * | 2009-07-22 | 2013-09-11 | 中兴通讯股份有限公司 | Association method and association device of label switched paths based on automatically switched optical network |
| CN101997751B (en) * | 2009-08-13 | 2014-12-17 | 中兴通讯股份有限公司 | Realization method and device of protection switching in Ethernet |
| CN101998186A (en) * | 2009-08-13 | 2011-03-30 | 中兴通讯股份有限公司 | Network protection method and device |
| CN101997606A (en) * | 2009-08-25 | 2011-03-30 | 华为技术有限公司 | Node management method and control plane |
| CN101656572B (en) * | 2009-09-02 | 2012-07-25 | 烽火通信科技股份有限公司 | Method for realizing permanent shared restoration in ASON network |
| CN102013922B (en) | 2009-09-04 | 2014-03-12 | 华为技术有限公司 | Information processing method as well as optical communication device and system in optical network |
| CN101835067A (en) * | 2009-12-29 | 2010-09-15 | 中兴通讯股份有限公司 | ASON (Automatic Switch Optical Network) automatic backup method, reduction method and device |
| CN102325045B (en) * | 2011-09-08 | 2017-07-18 | 中兴通讯股份有限公司 | It is a kind of to realize that control plane intersects the method and system switched |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030235153A1 (en) * | 2002-06-20 | 2003-12-25 | Yang Sup Lee | Control plane architecture for automatically switched optical network |
| CN1499747A (en) * | 2002-11-07 | 2004-05-26 | 华为技术有限公司 | Method for implementing protection and restoration for intelligent optical network |
| CN1520102A (en) * | 2003-01-22 | 2004-08-11 | 华为技术有限公司 | Method of switching routes by setting up and deleting fork marker |
-
2004
- 2004-10-08 CN CNB2004100806175A patent/CN1309216C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030235153A1 (en) * | 2002-06-20 | 2003-12-25 | Yang Sup Lee | Control plane architecture for automatically switched optical network |
| CN1499747A (en) * | 2002-11-07 | 2004-05-26 | 华为技术有限公司 | Method for implementing protection and restoration for intelligent optical network |
| CN1520102A (en) * | 2003-01-22 | 2004-08-11 | 华为技术有限公司 | Method of switching routes by setting up and deleting fork marker |
Non-Patent Citations (3)
| Title |
|---|
| ASON控制平面技及其仿真试验 张国颖，电信网技术，第1期 2003 * |
| ASON控制平面技及其仿真试验 张国颖，电信网技术，第1期 2003;自动交换光网络的生存性及保护恢复 霍晓莉，电信科学，第8期 2003 * |
| 自动交换光网络的生存性及保护恢复 霍晓莉，电信科学，第8期 2003 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011116594A1 (en) * | 2010-03-25 | 2011-09-29 | 中兴通讯股份有限公司 | Signaling control method and system for service establishment based on g.709 |
| US8964756B2 (en) | 2010-03-25 | 2015-02-24 | Zte Corporation | Signaling control method and system for service establishment based on G.709 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1588890A (en) | 2005-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1309216C (en) | Method for controlling plane participation protective rotation in ASON network | |
| CN1459160A (en) | Apparatus and method for optical communication protection | |
| CN1694418A (en) | Method for combining multi-section protection and mesh network recovery | |
| CN1848709A (en) | Passive optical network system for realizing protection switching and protection switching method | |
| CN1277375C (en) | Switching method between permanent connection and exchage connection in optical network | |
| CN1141105A (en) | Telecommunications network including a channel switching protection | |
| CN1960282A (en) | Multicast service method and device of providing multiple types of protection and recovery | |
| CN1645840A (en) | Fast rerouting of traffic in a circuit switched mesh network | |
| CN1512684A (en) | Method and device for elastic protection conversion in Ethernet passive optic network system | |
| CN1435070A (en) | Four-fiber ring optical cross-connect system using 4*4 switch matrices | |
| CN1392686A (en) | Recoverable path selectino set-up method of automatic exchanging optical network | |
| CN1859431A (en) | Method for realizing two-way marked exchange path | |
| CN1893385A (en) | Method for protecting transannular business of optical transmission network | |
| CN1661984A (en) | Method for treating multiplexing segments of loop chain in automatic switching optical network | |
| CN1815975A (en) | End-to-end business automatic configurating and restoring method in ASON network | |
| CN100352223C (en) | Method for protecting data service in metropolitan area transmission network | |
| CN1798051A (en) | Method of network fault recovery crossing over connections in multiple domains | |
| CN1812360A (en) | Intelligent optical network business re-routing trigging method | |
| CN102143410B (en) | Path computing method and unit in optical network | |
| CN1684381A (en) | Realizing method and device for optical path shared protection in wave division complex system | |
| CN1753323A (en) | Implementation method of protection exchanging in circular network | |
| CN1162998C (en) | Multifnctional light split/insersion multiplexer | |
| CN1259778C (en) | Organizing method for automaitic switching optical network node communication structure based on isolation technique of data communication network | |
| CN1255965C (en) | Optical brancking-complexing node device based on wavelength or waveband protection | |
| CN1592160A (en) | Method for obtaining path with protective body in intelligent optical network |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070404 Termination date: 20191008 |