Label deployment method and device based on segment routing

A label and routing technology, applied in the field of label deployment methods and devices based on segment routing, can solve problems such as impact on message transmission process, complex label management, label configuration errors, etc., to avoid label configuration errors, simplify network deployment, The effect of simplifying tag management

Active Publication Date: 2018-06-01
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

By analogy, for each message with a different destination IP address, it is necessary to reassign labels for each device, and label management is very complicated.
Moreover, if a label 1002 is assigned to device E for a packet whose destination IP address is IP2, since it is the same as the label assigned to device D above, it will cause a label configuration error, which will affect the packet transmission process, resulting in packet transmission fail

Method used

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  • Label deployment method and device based on segment routing
  • Label deployment method and device based on segment routing
  • Label deployment method and device based on segment routing

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Embodiment Construction

[0032] The terminology used in this application is for the purpose of describing specific embodiments only, not to limit the application. As used in this application and the 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 "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0033] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second information may also be called first information. Dependin...

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Abstract

The invention provides label deployment method and device based on segment routing; the method comprises the steps: for each interface of a network device, determining a reference label of opposite-end equipment in connection with the interface; sending a first mapping relation and a second mapping relation to the network device, wherein the first mapping relation comprises a corresponding relation between the interface and the reference label, and the second mapping relation comprises a corresponding relation between IP address of other network devices except the network device and label indexes of other network devices, and the network device uses the first mapping relation and the second mapping relation to generate a label forwarding table and uses the label forwarding table to forwardmessages. According to the technical scheme of the invention, networking deployment of SR can be simplified, label management is simplified, and a label configuration error is avoided.

Description

technical field [0001] The present application relates to the technical field of communications, in particular to a segment routing-based label deployment method and device. Background technique [0002] Since SR (Segment Routing, segment routing) has the advantages of simple control and short convergence time, the SR technology can be used to implement packet transmission. like figure 1 As shown in the figure, it is a schematic diagram of the SR network. Assuming that the forwarding path of the message is device A-->device B-->device C-->device D-->device E, configure a forwarding entry on device A, and its matching option is the destination IP address of the message , the action option is to encapsulate the label 1003 of device E, the label 1002 of device D, the label 1001 of device C, and the label 1000 of device B in sequence, and use the outbound port A1 to send the message. Configure a forwarding entry on device B. The match option is the label 1000 of devi...

Claims

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Application Information

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IPC IPC(8): H04L12/723H04L12/741H04L45/50H04L45/74
CPCH04L45/50H04L45/74
Inventor 林长望
Owner NEW H3C TECH CO LTD
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