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Propagation link marking method and device

A technology for disseminating links and links, applied in the field of communication, can solve the problems that routers cannot distinguish routes, the backbone network cannot effectively manage A, and subnet 1 cannot filter, etc.

Active Publication Date: 2020-10-30
北京华三通信技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this network, the backbone network needs to filter the routes about subnet 1 released by A, but the backbone network cannot effectively manage A, and it can only configure the routers (including G and E) included in the backbone network. manage
[0004] At this time, the route about subnet 1 advertised by A does not carry a routing tag, and the routers included in the backbone network cannot add routing tags to the route of subnet 1. In this way, the routers in the backbone network cannot distinguish the route of subnet 1 advertised by A. Routing, and network control actions such as filtering and routing policies cannot be performed on the path of subnet 1

Method used

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  • Propagation link marking method and device
  • Propagation link marking method and device
  • Propagation link marking method and device

Examples

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Embodiment Construction

[0022] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0023] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term ...

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Abstract

The invention provides a propagation link marking method and device. The method is applied to a first router, the first router operates an OSPFv3 protocol, the first router and a second router are neighbors to each other, and the method comprises the following steps that a link marking value of a first specified link is obtained; and a first link state advertisement LSA is sent to the second router, wherein the first LSA comprises the link mark value, so that when the second router starts a route filtering mode or the second router is an area boundary router ABR, a specified route is determined according to the link mark value, and a transmission path corresponding to the specified route comprises the first specified link.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for disseminating link labels. Background technique [0002] At present, according to the provisions of the existing Open Shortest Path First Routing Protocol Version 3 (English: Open Shortest PathFirst Version 3, referred to as: OSPFv3) protocol (specifically: RFC-5340, RFC-8362), in the autonomous system (English: Autonomous System , referred to as: AS) external link state advertisement (English: Link State Advertisement, referred to as: LSA) (English: AS-External-LSA) and extended AS external LSA (English: Extended-AS-External-LSA, referred to as: E-AS -External-LSA), each included route tag (Route Tag) field carries the tag value used to describe the route to the outside of the AS. The tag value is specified by the router that generates the route, and AS-External-LSA and E-AS-External-LSA cannot be used to describe routes generated ...

Claims

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Application Information

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IPC IPC(8): H04L12/723H04L12/721H04L12/753H04L45/50
CPCH04L45/50H04L45/14H04L45/48
Inventor 林长望李昊常露陈梦骁
Owner 北京华三通信技术有限公司
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