Method and apparatus for automatic topology discovery and resource management in PBB network

A network topology information and network technology, which is applied in the field of automatic topology discovery and resource management, and can solve the problems of lack of topology information and resource information collection methods.

Inactive Publication Date: 2009-06-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the existing technology, GMPLS is used as the PBB TE tunnel establishment mechanism for the PBB TE network, and there is still no way to collect topology information

Method used

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  • Method and apparatus for automatic topology discovery and resource management in PBB network
  • Method and apparatus for automatic topology discovery and resource management in PBB network
  • Method and apparatus for automatic topology discovery and resource management in PBB network

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0028] In the embodiment of the present invention, by extending the intermediate system to intermediate system (Intermediate System to Intermediate System, IS-IS) protocol, the PBB TE network nodes can collect the topology information and Resource information, used as the basis for tunnel configuration or automatic establishment in the PBB TE network.

[0029] IS-IS protocol is a Layer 2-based network protocol used for network topology discovery, network resource information collection, and data forwarding path calculation. The IS-IS protocol includes three protocol packets:

[0030] 1) Hello message, used to discover neighbor nodes;

[0031] 2) Link State Packets (LSPs) messages for exchanging link state information;

[0032] 3) Sequence Number Packets (SNPs) messages...

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Abstract

The invention discloses a method for automatic topology discovery and resource information management in a Provider Backbone Bridging Traffic Engineering (PBB TE) network. A first network node constructs an Intermediate System to Intermediate System (IS-IS) Hello message containing network topology information or an IS-IS Link State Affirm (LSA) message containing resource information, and transmits the message in the PBB TE network; and a second network node receives the message and records the network topology information or the resource information in the message to a local network topology information database or a resource information database. The invention also discloses a PBB TE network node device. The proposal of the method can achieve the automatic topology discovery and the resource information management in the PBB TE network.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a method and device for automatic topology discovery and resource management in a Provider Backbone Bridge Traffic Engineering (PBB TE) network. Background technique [0002] Because PBB TE is based on PBB, here we first introduce PBB. In popular language, PBB is Mac-in-Mac, that is, by encapsulating a layer of media access control (MAC) address before the ordinary Ethernet (Ethernet) frame, which is called the backbone layer address, so that the user address and operation The business address is separated. In this way, on the one hand, the independence of management can be guaranteed, and on the other hand, the security of services can be improved. At the same time, the size of the MAC table of the backbone layer equipment can be greatly reduced, and the complexity of equipment implementation can be reduced. In the PBB network, traditional point-to-point, point-to-mu...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L12/54
CPCH04L47/822H04L45/50H04L12/5695H04L45/00H04L47/70
Inventor 翟素平
Owner HUAWEI TECH CO LTD
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