Method and system for service exit of data link

A data link and link technology, applied in the field of network communication, can solve problems such as resource waste, low compatibility, and low dynamic management efficiency, and achieve high efficiency and resource saving effects

Inactive Publication Date: 2008-04-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In order to solve the problems of low dynamic management efficiency, resource waste, low compatibility, and possible impact on services carried by data links in the prior art, the present invention provides a method for data link exit service, which specifically includes:

Method used

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  • Method and system for service exit of data link
  • Method and system for service exit of data link
  • Method and system for service exit of data link

Examples

Experimental program
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Embodiment 1

[0082] Generally, the link blocking request is initiated by the management plane as needed. In this embodiment, it is assumed that the local router LSRA initiates a link block request to the peer router LSR B, see figure 2 , the present invention provides a method for data link exit service, specifically comprising:

[0083] Step 101: The local management plane initiates a link blocking request as required;

[0084] Step 102: The local router LSR A judges the feasibility of the request, that is, judges whether the impact of the request on existing services is within an acceptable range; the range refers to: when there is only one available data link in the TE link road, or when the bandwidth of other available data links is not enough to accommodate the past business of this link switching, blocking is not allowed; if blocking is not possible, then perform step 103, otherwise perform step 104;

[0085] Step 103: return a rejection message to the management plane and end;

...

Embodiment 2

[0108] see image 3 , the present invention also provides a system for withdrawing a data link from service, the system includes a local end and a peer end.

[0109] The local end includes a communication module and a link management module:

[0110] (1) The communication module is used to communicate with the opposite end; that is, send a link blocking message to the opposite end to request to block the data link in the bundled link, and receive the link blocking confirmation message or link returned by the opposite end Block negative acknowledgment messages;

[0111] (2) The link management module is used to manage the data link state in the bundled link; it forwards the link blocking request sent by the management plane to the communication module to maintain the data link state machine. After the link blocking confirmation message forwarded by the communication module, the data link is blocked and the blocking confirmation message is sent to the management plane. After r...

Embodiment 3

[0129] see Figure 4 Assuming that the local router LSR A initiates a link unblocking request to the opposite router LSR B, the present invention also provides a method for restoring a data link service, which specifically includes:

[0130] Step 201: the local management plane initiates a link unblocking request as required;

[0131] Step 202: LSR A first judges whether the request is feasible, that is, judges whether the data link is in a normal state and the "peer blocked" flag is not set, and if one or both of the above two conditions are not satisfied, the step is executed 203: If the above two conditions are satisfied (that is, the data link is normal and the "peer block" is not set), the block can be released, and step 204 is executed;

[0132] Step 203: When the "peer block" flag has been set, it indicates that the link is blocked by the peer, and can only be released by the peer, and the local end has no right to release; when the data link is not in a normal state, ...

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Abstract

The method and system for data link to exit service are in use for solving that low dynamic management efficiency, waste resources, poor compatibility, and possible to influence service load-born by data link etc existed in current technique. The method includes steps: local terminal sends message of link blocked off to opposite terminal; when determining that blocking off data link is tolerable, the opposite terminal blocks off data link and returns message of confirming link blocked off to local end; after receiving the said confirming message, the local terminal blocks off data link. The invention also discloses the system composed of local and opposite terminals for exiting data link. The invention makes operational manager possible to carry out testing, replacing, and updating operations for operational links so as not to damage services. Thus, it is feasible to exit or get back services for one or more data links at one time in high efficiency, and resources saved.

Description

technical field [0001] The present invention relates to the technical field of network communication, and in particular, to a method and system for withdrawing a data link from service. Background technique [0002] In GMPLS (Generalized Multi-Protocol Label Switching, Generalized Multi-Protocol Label Switching), when there are multiple parallel links between a pair of LSRs (Label Switching Router, Label Switching Router), in order to reduce the routing protocol overhead and enhance the routing protocol The scalability of these links can be described as one or several logics in OSPF (Open Shortest Path First, shortest path first routing protocol) / ISIS (Intermediate System-to-Intermediate System, intermediate system to intermediate system routing protocol). link, this process is called link binding. The bundled logical link is called a bundled link, also known as a TE (Traffic Engineering, traffic engineering) link. There are two types of actual links that constitute a bundl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/28
Inventor 管红光
Owner HUAWEI TECH CO LTD
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