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ISIS (Intermediate System to Intermediate System) LSP (Link State Protocol Data Unit) publishing method and equipment

A technology for equipment and network equipment, applied in the field of communication, can solve the problems of high cost of routing calculation of Spoke equipment, large overhead of LSP flooding on Hub equipment, difficult maintenance by network administrators, etc., to reduce flooding overhead, improve stability and Scalability, the effect of reducing capacity and routing computation overhead

Active Publication Date: 2013-05-01
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0019] 2) The routing calculation overhead on the Spoke device is large
[0021] 3) The cost of LSP flooding on the Hub device is high
However, in this solution, a large number of ISIS process configurations need to be done on the Hub device, which consumes a lot of system resources, and the configuration is relatively complicated, making it difficult for network administrators to maintain

Method used

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  • ISIS (Intermediate System to Intermediate System) LSP (Link State Protocol Data Unit) publishing method and equipment
  • ISIS (Intermediate System to Intermediate System) LSP (Link State Protocol Data Unit) publishing method and equipment

Examples

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Embodiment Construction

[0050] Aiming at the above-mentioned problems existing in the prior art, the embodiment of the present invention provides a technical solution issued by an ISIS LSP, which is applied in a Hub-Spoke network. In this technical scheme, by configuring the ISIS control command on the Hub device, the Hub device will publish the default route through the interface connected to the Spoke device or other Hub devices; when the Hub device receives the LSP, the Hub device will save the LSP and terminate The forwarding of the LSP through the interface connected to the Spoke device reduces the LSP flooding overhead of the Hub device, and reduces the capacity of the LSDB of the Spoke device and the routing calculation overhead, thereby improving the stability and scalability of the network.

[0051] Wherein, in the embodiment of the present invention, the interface connected to other Hub devices on the Hub device or the interface connected to the Spoke device can be identified through the ISI...

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Abstract

The invention discloses an ISIS (Intermediate System to Intermediate System) LSP (Layered Service Provider) publishing method and equipment. The method comprises the following steps that a self generated LSP is sent by Hub equipment through an interface connected with Spoke equipment or other Hub equipment, wherein the self generated LSP of the Hub equipment contains default routing information, so that a default route, the next hop of which is the Hub equipment, is generated by the Spoke equipment, which is used for receiving the self generated LSP of the Hub equipment, in accordance with the default routing information; and when the LSP is received by the Hub equipment, the LSP is preserved by the Hub equipment, and the forwarding of the LSP through an interface connected with the Spoke equipment is terminated. According to the ISIS LSP publishing method and the equipment, the LSP flooding overhead of the Hub equipment is reduced, and the LSDB (Link State Database) capacity and the routing computation overhead of the Spoke equipment are reduced, thereby improving the stability and the expandability of a network.

Description

technical field [0001] The invention relates to the communication field, in particular to an ISIS LSP publishing method and equipment. Background technique [0002] ISIS (Intermediate system to intermediate system, intermediate system to intermediate system) protocol is an internal routing protocol of an autonomous system based on link state. The working mechanism of the protocol is to establish and maintain neighbors between devices periodically through Hello packets. Relationship, the LSP (Link State Protocol Data Unit, link state information protocol data unit) that describes the link state is diffused between the devices that form the neighbor relationship, and the same LSDB (Link State Database, link state database) is finally formed on each device in the network Routing state database), route calculation is performed on the basis of LSDB, and the generated routing information is saved in the routing table. The routing table selects the optimal route and sends it to the...

Claims

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Application Information

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IPC IPC(8): H04L12/701
Inventor 刘畅
Owner NEW H3C TECH CO LTD
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