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Method, routing processing server, network elements and system for processing topological information

A technology for processing server and topology information, applied in the field of communication, can solve the problems of increased network message traffic and complex software, and achieve the effect of reducing the amount of calculation and expanding the scope of management

Active Publication Date: 2014-12-03
HUAWEI TECH CO LTD
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  • Claims
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Problems solved by technology

[0007] 2. When a link between network elements fails, the entire network needs to be notified. At this time, each network element recalculates the topology information, which will increase the message traffic of the network.
[0008] Under the network architecture based on software-defined network (Soft Defined Network, SDN) in the future, the network element software is required to be simplified as much as possible. If each network element needs the whole network topology and routing calculation, its software will inevitably become complicated.

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  • Method, routing processing server, network elements and system for processing topological information
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  • Method, routing processing server, network elements and system for processing topological information

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Embodiment Construction

[0075] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0076] The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

[0077] refer to figure 1 , figure 1 It is a structural diagram of a system for processing topology information provided by an embodiment of the present invention. NE A is connected to NE B through link L1, connected to NE C through link L2, connected to NE E t...

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Abstract

The invention discloses a method, a routing processing server, network elements and a system for processing topological information. According to the method, by receiving an LSA sent by a first network element, and generating an LSDB according to information in the LSA, network elements do not need to be flooded, and do not need to exchange LSDBs with adjacent network elements, thereby reducing flooding of the network elements which is performed due to a requirement for obtaining topology of regions where the network elements are; at the same time, the routing processing server generates an LSDB according to the information in the LSA, calculates a forwarding information table of the first network element according to the LSDB, and sends the forwarding information table to the first network element, so that the network elements in a domain do not need to calculate the LSDB and the forwarding information table of a network where the network elements are, thereby reducing the calculation amount of the network elements in the domain.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a method for processing topology information, a route processing server, a network element and a system. Background technique [0002] Currently, the most common intra-autonomous domain routing protocols are Open Shortest Path First (Open Shortest Path First, OSPF) and Intermediate System-Intermediate System (IS-IS). The basic principles of OSPF and IS-IS are both Relatively similar. The main features are: [0003] 1. Each network element floods its own link state advertisement (Link State Advertise, LSA) according to certain rules, and then exchanges the link state database (Link State DataBase, LSDB) with adjacent network elements, so that each Each network element can obtain the topology of the area where each network element is located; [0004] 2. Each network element obtains the shortest path from the network element to the domain of other network elements according...

Claims

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Application Information

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IPC IPC(8): H04L12/751H04L12/721H04L45/02
Inventor 于志强郑莲淑
Owner HUAWEI TECH CO LTD
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