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A prefix identification notification method and device across an internal gateway protocol

An interior gateway protocol, prefix identification technology, applied in the field of communication, to achieve the effect of improving stability and reliability

Active Publication Date: 2019-06-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problems caused by cross-network devices referencing prefix identifiers across IGP domains, and ensure that prefix identifiers can use SR path calculation on the first network and second network related to cross-network devices, and there will be no failure scenarios that cause slow service recovery issues, improved stability and reliability

Method used

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  • A prefix identification notification method and device across an internal gateway protocol
  • A prefix identification notification method and device across an internal gateway protocol
  • A prefix identification notification method and device across an internal gateway protocol

Examples

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Embodiment Construction

[0033] Embodiments of the present application are described below in conjunction with the accompanying drawings.

[0034] An embodiment of the present application provides a method for announcing a prefix identifier across an interior gateway protocol, which is used to implement the advertisement of a prefix identifier across network devices.

[0035] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method...

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Abstract

The embodiment of the invention discloses a prefix identification notification method and device across an internal gateway protocol, which are used for announcing the prefix identifiers across network equipment. The method is used for cross-network equipment of a cross-internal gateway protocol. the cross-network equipment is respectively accessed to a first network adopting a first protocol anda second network adopting a second protocol; wherein the first protocol and the second protocol are different internal gateway protocols; Due to the fact that the first protocol and the second protocol are enabled at the local loopback interface across the network device, the across-network device can announce the prefix identification across the network device to the device in the first network according to the first protocol and can announce the prefix identification across the network device to the device in the second network according to the second protocol. The problem caused by cross-network equipment cross-IGP domain mutual leading prefix identification is solved, it is guaranteed that the prefix identification can use SR calculation paths in a first network and a second network related to the cross-network equipment, the problem that service recovery is slow due to the fact that a fault scene does not occur is solved, and stability and reliability are improved.

Description

technical field [0001] The application relates to the field of communication, in particular to the announcement of the prefix identification across interior gateway protocols in segment routing. Background technique [0002] The segment routing (Segment Routing, SR) protocol is a source routing protocol. The source node specifies the path for the application message, and converts the path into an ordered Segment list and encapsulates it in the message header. The intermediate node of the path It only needs to be forwarded according to the path specified in the packet header. Segment-style commands for devices to process packets, such as forwarding packets to destinations according to the shortest path, forwarding packets through specified interfaces, forwarding packets to specified application / service instances, etc. The SR protocol can simplify the network and has good scalability, so it has become a very promising technology at present. [0003] In the SR scheme, a prefi...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/745H04L12/751H04L45/02H04L45/748
CPCH04L45/52
Inventor 王九明朱永庆陈华南
Owner HUAWEI TECH CO LTD
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