Method and device for realizing ring-network Steering protection

A ring network and protection channel technology, applied in the field of communication networks, can solve the problems of increasing the number of labels, increasing the difficulty of path label management, and raising the hardware requirements of ring network node equipment, etc.

Active Publication Date: 2014-05-14
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since this method takes the network service as a unit and independently constructs the working channel and protection channel corresponding to the network service, when the number of network services increases sharply, the total number of channels (working channel and protection channel) increases linearly, thereby increasing the The configuration workload and configuration complexity of each node of the ring network increase the hardware requirements of the ring network node equipment
In addition, since each channel requires its own independent path label identification, the increase in the total number of channels increases the number of labels, which increases the difficulty of path label management

Method used

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  • Method and device for realizing ring-network Steering protection
  • Method and device for realizing ring-network Steering protection
  • Method and device for realizing ring-network Steering protection

Examples

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Embodiment 1

[0074] see figure 2 , which shows the flow of Embodiment 1 of the method for realizing ring network Steering protection of the present application. This example includes:

[0075] Step S201: establishing a working channel and a protection channel corresponding to each node of the ring network;

[0076] The ring network includes a plurality of nodes forming the ring network, and these nodes may correspond to a specific network device, or may correspond to a virtual network structure unit. According to the different roles played in the transmission network business process, the nodes on the ring network can be divided into three types: one is the entry point of the access network business, the other is the intermediate ring node of the transmission network business, and the third is the output network The exit point of the business. These three types of nodes each play their own roles in the process of transmitting a single network service. However, as far as the ring network...

Embodiment 2

[0087] The above-mentioned embodiments mentioned that various ways can be used to establish the working channel and protection channel of each node of the ring network. In the actual application process, this application preferably uses the label mechanism to achieve this purpose, and implements the network on the ring network based on the label mechanism. Service transmission is used to implement ring network Steering protection, thus constituting Embodiment 2 of the present application. Referring to FIG. 3 , in which: FIG. 3(a) shows the flow of this embodiment; FIG. 3(b) shows the ring channel label assignment and network service transmission process of this embodiment. This example includes:

[0088] Step S301: Assign ring channel labels to nodes adjacent to the nodes to be established working channels and protection channels;

[0089] Step S302: Determine the working channel and protection channel of each node of the ring network according to the received ring channel la...

Embodiment 3

[0100] In order to further illustrate the technical solution of the embodiment of the present application, the transmission of the LSP service on the ring network is taken as an example below for further explanation (thus constituting the third embodiment of the present application). Referring to Fig. 4, Fig. 4(a) is the logical hierarchical structure of the transmission LSP service in the prior art; Fig. (b) is the logical hierarchical structure of the transmission LSP service in this embodiment. In the prior art, when transmitting LSP services on a ring network, a two-layer structure mechanism of a PW (Pseudo Wire) layer and an LSP layer is adopted, and the preset ring channel label is exchanged at the LSP layer when different nodes transmit, and the The LSP service is transmitted to the destination node. Since the path label in this way is uniquely associated with the LSP service, it is impossible to share the working channels of the nodes. This embodiment adopts a three-la...

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Abstract

The embodiment of the application discloses a method for realizing ring-network Steering protection. The method includes: establishing work channels and protection channels, which are corresponding to different nodes of a ring network; and according to the state of links of the nodes of the ring network, switching to a transmission network service of the work channels or the protection channels so as to realize the ring-network Steering protection. The embodiment of the application also provides a device for realizing the ring-network Steering protection and a method and device for realizing the ring-network Steering protection on the basis of an LSP service. The scheme of the embodiment of the invention reduces the number of the work channels and the protection channels so that the configuration workload and configuration complexity of the nodes of the ring network are reduced and hardware demands on network ring node devices are reduced.

Description

technical field [0001] The present application relates to the technical field of communication networks, in particular to a method for implementing ring network Steering protection and a corresponding device. Background technique [0002] A ring network (hereinafter referred to as a ring network) is a network topology commonly used in the field of communication technology. Compared with other network topologies, the ring network structure can greatly improve the network survivability (Survivability, which refers to the ability of the network to heal itself in a very short time to maintain a tolerable service level when a network device node fails) . Based on this characteristic, the ring network is widely used to form various networks (such as optical network, microwave network, packet transport network PTN, etc.). The network service transmitted through the ring network enhances the network survivability by setting the working channel and the protection channel. The ring ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/437
Inventor 程伟强王磊李晗叶雯
Owner CHINA MOBILE COMM GRP CO LTD
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