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A srv6 Endpoint fault protection method

A fault protection and node technology, applied in the network field, can solve the problems of increasing the processing time of the upstream node, that is, the proxy forwarding node, reducing the processing efficiency of the node, and achieving the effect of reducing the processing time

Active Publication Date: 2022-06-07
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention is used to solve the problem that the current SRv6 Endpoint fault protection method will increase the processing time of the upstream node, that is, the proxy forwarding node and reduce the processing efficiency of the node

Method used

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  • A srv6 Endpoint fault protection method
  • A srv6 Endpoint fault protection method
  • A srv6 Endpoint fault protection method

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Embodiment Construction

[0034] The content of each part involved in the present invention and specific application scenarios are described in detail below.

[0035] (1) Flags field definition

[0036] Segment Routing Header (SRH) is used to encapsulate SRv6 and SID, figure 1 The data format of SRH is given.

[0037] The method of the present invention designs a new Flags field, and sets the seventh bit of the Flags field as the t-flag bit, that is, the double flag, which is used to judge the additional behavior of the SID, figure 2 The format of the Flags field is given.

[0038] (2) SID additional behavior

[0039] In order to realize the function of bypassing the faulty Endpoint node, the present invention newly defines an additional behavior, minus two Segments (Minus Two Segment, MTS).

[0040] MTS refers to the action of performing Segments Left minus 2 at the Endpoint node. MTS needs to be used in conjunction with End, End.X and End.T, and is an additional action attached to them. The sta...

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Abstract

The invention belongs to the field of network technology, and particularly relates to an SRv6 Endpoint fault protection method, which is used to solve the problem that the current SRv6 Endpoint fault protection method increases the processing time of an upstream node, that is, an agent forwarding node and reduces the processing efficiency of the node. The present invention considers reducing the processing time of the proxy forwarding node. After the proxy forwarding node only performs a lookup routing table operation once, if the table entry exists, the SID of the repair path is encapsulated, and the data packet is guided to its next-hop backup node. Execute the additional behavior of SID, bypass the faulty Endpoint node, and forward the data packet. The present invention designs a new Flags field in the SRH for judging the SID addition behavior, designs a new SID addition behavior MTS, and designs a next-hop backup node selection mechanism, so that the faulty Endpoint node can be bypassed.

Description

technical field [0001] The invention belongs to the field of network technology, and in particular relates to an SRv6 Endpoint fault protection method. Background technique [0002] With the advent of the 5G and cloud era, the process of global informatization has led to the rapid and vigorous development of Internet applications, and rich business applications require operators' networks to have stronger programmable capabilities. The Internet Protocol (IP) network, which is the cornerstone of the global Internet development, constantly responds to challenges with technological innovation and continuous evolution. [0003] Segment Routing (SR) is a source routing technology. The source node specifies the path for the application packet, and converts the path into an ordered segment list (Segment List) and encapsulates it in the packet header. The intermediate nodes of the path only need to forward according to the path specified in the packet header. Such a segment is cal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L45/00H04L45/28H04L45/247H04L45/24
CPCH04L45/34H04L45/28H04L45/22
Inventor 霍如王硕刘江黄韬刘韵洁
Owner BEIJING UNIV OF TECH
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