WO2010148781A1

WO2010148781A1 - Protection method and device for service in automatically switched optical network

Info

Publication number: WO2010148781A1
Application number: PCT/CN2010/072354
Authority: WO
Inventors: 孙丰洁
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-12-10
Filing date: 2010-04-30
Publication date: 2010-12-29
Also published as: CN101710846B; CN101710846A

Abstract

A protection method and device for service in an automatically switched optical network is provided. Link resource detection is performed periodically in the whole network and each device is enabled to grasp the link resource occupation condition of the whole network; after service recovery fails, service recovery operation is performed once more when the source node device of the service knows that the link resource needed by the service is available in the whole network. Compared with the prior art, service recovery is achieved without manual interference when the link resource changes from an unavailable state to an available state, thus it is guaranteed that the service is opened immediately after the link resource is recovered.

Description

Since the suspension of each method and device

This is related to the exchange (ASO, A O a Ca y Sw Ched OP Ca e wo ) wood field, especially in the exchange and the various methods and

Background

Looking at the growth of various quantities, the way in which the workers are configured and the various methods have become less and less demanded by Muyou. In the case of the order, the exchanges are configured to connect and configure the exchange of intelligent wood.

Exchange wood, also intelligent wood, can not be quickly provided and each, can provide new routes in the existing for management and purposes, interactively establish new connections following the new connection, and switch each connection to the new connection, convenient , fast, but also the purpose of management and.

In the middle, and each obstacle occurs, each provides itself first, and each provided protection measures meet the requirements. In the intelligent control plane, a new connection is established and each material is connected. However,

Not satisfied, more resources than non-existent, and each is in the middle, and resources appear again, and each phase does not

, and each is still in the middle, this, the need to work under the command of the control plane in the intelligence, resulting in the same, the user is inconvenient. content

The wood to be solved is to provide the same method and device for exchanging and suspending each other. The intelligence has its own characteristics, and overcomes the defects of the existing control planes in the wood and each failure requires the control plane. with.

The wood scheme used here is

In the exchange, each method of protection, including all the resources of the regular health resources of each

And each failed, and each of the resources occupied by each of them has all the resources needed and re-operated. Resource occupancy includes

Each of the periodic local resource information, the local resource information, and the local resource information list are updated, and the local resource information information is shared.

Each of the all of the local resources information communication means the signaling mode of each control plane, and the local resource information is all

The local resource information obtained by each of the remaining contents updates the list of saved resource information.

And each of the resources occupied by all of Aene has all the necessary resources, and each operation includes information, and each combination of local preservation and information exists in this Each and every required resource is re-operated.

The locally saved information includes and whether each has a barrier.

The re-operation and the operation include

And each of them, through the control plane's signaling along the cross-information of the resources of each of the roads, and each of them all went to the resource downhole cross-information success, and each success.

In the exchange, each of the protection devices, in each of the units, the device includes

Through, on a regular basis, all resources, each unit has the same resource occupancy situation.

And each of the resources occupied by the roots has been re-operated and operated in the same way.

The pass includes

Jianlu resources, on a regular local resource information, information, resource management

Resource management, updating the locally saved resource information list according to the local resource information received by the root and the remaining resource information, and locally controlling the resource information, and controlling the received local resources, and the signaling of the control plane is localized. The resource information is received to receive all the remaining resource information.

The steps include connection control

Connection control, resource management local resources The information and/or the remaining resource information are combined with the locally stored information, and each of the information is stored in the respective resources.

The locally saved information includes and whether each has a barrier.

The control, which is in the signaling plane of the control plane, treats each path and reserves resources

The connection control, step by step to local resource management

Resources, cross information to the local plane.

The wood plan, this has at least the following

In this Ming Dynasty, the resources of each unit are all in the possession of each resource, and each of them has failed, and each of them has its own resources and needs to be re-operated. Compared with the existing wood, the resources are available in the form of unavailability, in the case of industrial intervention, and the same and the same in each of the resources. In contrast, this Mingbao device includes the functions and methods of connection control, resource management and controller for each of the above-mentioned intelligent, and the same interactions have overcome the existing failures in the wood. The defects of the control plane in the work intelligence are required, and the same and the same are achieved. Description

In the process of the exchange of the various methods of protection, the instructions of each of the protection devices

3 The schematic diagram of the connection of the AC and the AC in the barrier and the other indications of the same connection of the ACs 5 Schematic diagram of the connection of the load and the connection of each A. Hugh way

The following is a combination of the wooden means and the function of the intended purpose, and the better, and the methods and devices for the protection in the present exchange are described in detail.

1 The process of the protection method in each of the exchanges, as shown in 1, includes the following steps

Step 101 Each periodic local resource information.

Because of the existing functions in the existing wood, the exchange has its own function to the control plane, the control plane has the function of connecting the local resources of the operation of establishing and deleting, and the method of measuring the idle mode in this step is The wood in this field is easy to get, no longer.

Step 102 Update the locally saved resource information list for each local resource information that is periodically received.

Step 103: Each of the control planes is forwarded first (OSPF, Ope ShoTes ahF s), and the local resource information is added to the remaining local resource information in the remaining all of the remaining steps 104, and the saved resource information list is updated.

Step 105: occupies the local resource information and/or the remaining resource information, and whether each locally stored information and each resource has its own required resources. If yes, execute step 106. Otherwise, the operation is not performed. .

Step 106 and the signaling of each control plane are viewed along And each of the roads to the resources under the cross information, and each of them all went to the resource underground cross-information success, and each success.

2 The diagram of each of the protection devices in the exchange of the power, each of the entire, 2, mainly including

, its ,

Suspension, the use of resources in each of the regular full resources

And each of the resources occupied by the entire roots has all the resources needed for each and every

.

Including resources, resource management and control,

Health resources, in the regular local resource information information resource manager (R, Reso ce a ageT.

R, the local resource information received by the root and the remaining resource information, update the locally saved resource information list, the local resource information is passed to the local controller (PC, ooco Co To ), and the received local resource information and the remaining The resource information is advertised and includes a connection controller (C, Co ec o Co oe ), resource management local resource information and/or remaining resource information, combined with locally saved information and existing information. And each required resource is re-operated

C, the local resources received by the signaling at the control plane The information is received to receive all the remaining resource information.

C. In the local resource information and/or the remaining resource information, the locally stored information and the existing information are re-operated separately. Among them, the local 5 saves and each information includes and does not have any obstacles.

Re-operation and operation, C, step by step on the control plane and look at each way to reserve resources

Each C is stepped locally to the R resource and crosses the information to the local plane.

In combination with the occupation of resources,

Exchange and protection methods and devices.

3 The illustration of the connection between the AC and the AC, and the lack of sufficient resources in each of the barriers, 3, the user establishes the properties of each of the third to third C,

5 AC and each. Carrying AC and connecting each other

1, the second, each third, the same as the second.

The second obstacles are 2nd, 2nd, and 6th. The second periodicity is generated by the local resource information. The local barrier information is passed to the local R, R. The local resource information list is deleted. 0 Unavailable resources. , put the second resource information C.

Due to the signaling work of the C control plane, C receives the second resource information, and the second resource information is sent to the third and third Cs at the control plane SPF. The signaling of the C control plane of the third A and the third C receives the second resource information, and each of the Rs is respectively 5 . According to the existing wood, since the ACs each have an AC and each of them is the same A, since the resources of the third and third Cs are already unavailable, each fails.

The second obstacles are eliminated, and the second, third, and third Cs have some or all of the same roads, and the other diagrams of the connections between the ACs and the ACs are 4, compared to the first, then, the second local The barrier disappears and the information is local. The local R updates the local resource information list, and the resource information is passed to the local C, and the local C re-control plane SPF is full. The C commands of the first A and the third C receive the second resource information, and each R and R respectively update the local resource information list.

Each of the ACs and the respective Rs of the respective A receive the second resource information, notify C, and the C and the second resource information are locally saved and determined by each information. , The information stored locally includes and does not exist, and each has a barrier.

C decides AC and each, to the local R resource, and then crosses the information to the local plane.

The C-control plane will establish a connection signaling friend. It can provide the second C that carries the AC and each resource. The second C of the reserved resource is re-transmitted to the second C.

The second C also goes to the local R resource, but then crosses the information under the local plane.

In this way, until the third C, which carries the AC and each resource, crosses the information to the local plane, and each succeeds.

5 The indication of the connection of the force bearing and A, by In the case of lack of sufficient resources in each barrier, as shown in Figure 5, / users establish the first A to the first and each, A and each, carrying A and each connection A and third C to In the first, the second work A, the second work A of the second and the second work A, the resources of the second work A have been occupied by other resources. So, the third C is the same

Barrier, the third C e local barrier information is local, the local R deletes the unavailable resource in the local resource information list, and the third C of each C will block the local C, and the local C re-control plane SPF The resource information is all. Information for each of the first, second, and fourth.

A and each with, according to the existing wood, A and each of the A and each, because this resource is saturated, failed.

The second work A is deleted and the resources are deleted. The A, the second, and the second R each update the local resource information list, the resource information is passed to each C, and each C re-control plane is OSPF. . In A and each, A and each

That is, the R of the first A receives the received resource information, and the C and the second and the first resource information are locally stored and determined by each information, and the locally stored information includes each and every, and whether each has a barrier or the like. .

C decides A and goes to the local R resource, then crosses the information to the local plane.

The signaling friend who will connect to the C control plane will provide the second C of the A and the resources, and reserve the second resource. Each C re-passes the second C

In this way, until the information of the first and the local 5 planes carrying the A and each resource is provided, each of them succeeds.

In this exchange, each method and device is protected, and all resources are occupied by each resource. Each resource has its own failures, and each resource has its own resources and operations. Compared with the existing wood, the resources are available by the unavailability of 0. In the case of industrial intervention, and

And the same in each of the resources. The security devices of the company, including the Tonghe and the others, are the functions and methods of the C, R and C of each of the intelligent ones. Through the interactions, the existing woods are overcome and the failures are overcome. 5 The defects of the control plane in the work intelligence, and the same and the same.

The explanation of the mode of rest can be understood by the wood means and function of the intended purpose, but it is provided for reference and is not limited.

Claims

Claim

1. The method of insurance in the exchange, which is characterized in that it includes the resources of each regular health resource in each village.

And each failure, and each of the resources occupied by each of the various resources in the situation, the existence of the required resources, the operation is restarted.

2. The protection method described in Requirement 1 is characterized in that all the resources of each regular health resource are occupied by each resource.

Each of the regular local resource information and the local resource information are updated to a list of locally saved resource information, and the local resource information is shared.

3. The method of claim 2, which is characterized in that each of the local resources information is shared by each of the local resources.

The signaling method of each control plane will be the rest of the local resource information

The local resource information obtained for each of the rest is updated with a list of saved resource information.

4. The method of guaranteeing 1, 2 or 3, which is characterized in that the resources occupied by each of the masters are all present and the resources required are re-operated and the operations include information, and each combination The locally saved information and the information are stored in the same way.

5. The method of claim 4, which is characterized in that it is locally stored and Each piece of information includes and does not have any obstacles.

6, the requirements of 1, 2, 3 or 5, the special method, the re-operation and including

Each of the two, through the control plane's signaling along the cross-information of the resources and the resources of each of the roads, and each of them to the resource downhole cross-successful information, and each success.

7. In the exchange, each of the protection devices, in each of the units, the device includes

Bolting and testing, the use of resources in each of the regular full resources

Each of the resources occupied by the entire roots has its own resources and needs to be re-operated.

8. The protection device of requirement 7 is characterized by

9. The protection device of claim 8, which is characterized by

Step including connection control The connection control, the resource management local resource information and/or the remaining resource information, combined with the locally stored information and the respective resources, are re-operated separately.

10. The protection device of claim 9 is characterized in that the information stored locally and the information includes whether or not there is a barrier.

11. The protection device of 8, 9, or 10 is required to control and follow the signaling plane of the control plane and reserve resources for each road.

The connection control, step by step to local resource management

Resources Cross information to the local plane.