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Method for verifying service chain, sending node, forwarding node and service function node

A technology of business function and forwarding node, applied in the field of business chain, which can solve the problem of inapplicability of business chain verification method.

Pending Publication Date: 2021-03-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the service chain verification method based on the separation of service plane encapsulation and forwarding plane encapsulation (Network Service Header, NSH) is not applicable in many aspects

Method used

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  • Method for verifying service chain, sending node, forwarding node and service function node
  • Method for verifying service chain, sending node, forwarding node and service function node
  • Method for verifying service chain, sending node, forwarding node and service function node

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Experimental program
Comparison scheme
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specific Embodiment 1

[0252] The specific method for verifying the business chain of this embodiment may include the following steps:

[0253] A101. The sending node constructs and sends service chain verification request information.

[0254] Wherein, the sending node first obtains the SIDs of the service nodes (SFF node and SF node) of the service chain to be verified, so as to determine the SF node to be verified.

[0255] Specifically, the SID of the service node of the service chain to be verified can be acquired locally, or can be configured by the control plane.

[0256] Wherein, the sending node also needs to add identity information (identity SID, identity identifier) ​​to the service chain verification request information to indicate the identity of the service chain verification request information.

[0257] Among them, the sending node also needs to add the check node information, verification parameter information, etc. to the service chain verification request information.

[0258] ...

specific Embodiment 2

[0271] This embodiment is used for the path verification of the service chain, specifically, the path verification is realized through the interaction between the SF node and the SFF node.

[0272] refer to Figure 11 , the sending node in the network of this embodiment is connected to the first service function forwarding node (SFF1), and SFF1 is connected to the second service function forwarding node (SFF2); SFF1 has the first service function node (SF1) and the second service function node under SFF1 (SF2), SFF2 has a third service function node (SF3); meanwhile, both SFF1 and SFF2 are connected to the check node.

[0273] It should be understood that in this embodiment, the sending node and the checking node are logically regarded as two different nodes for description, and the entities of the two may be one node.

[0274] In this embodiment, the service chain to be verified is SF1-->SF2-->SF3 as an example for illustration.

[0275] refer to Figure 12 , the specific ...

specific Embodiment 3

[0319] This embodiment is used for the path verification of the service chain, specifically, the path verification is realized through the pre-stored information of the SFF node itself.

[0320] refer to Figure 11 , the network in this embodiment is similar to the above embodiment.

[0321] In this embodiment, the service chain to be verified is SF1-->SF2-->SF3 as an example for illustration.

[0322] refer to Figure 12 , the specific method for verifying the service chain in this embodiment may include the following steps

[0323] A301. The sending node constructs and sends service chain verification request information.

[0324] A302, SFF1, after receiving the service chain verification request information, recognizes it as the service chain verification request information, and queries SF1 in the locally pre-stored information table (such as adding in the forwarding table, or adding an attribute table associated with the forwarding table) The location and SF type of S...

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Abstract

The embodiment of the invention provides a method for verifying a service chain, which is used for a sending node. The method comprises the following steps: sending service chain verification requestinformation, wherein the service chain verification request information is a segment routing message, and a segment list of the service chain verification request information at least comprises a segment identifier of a to-be-verified service function node; the service chain verification request information comprises a verification request, and the verification request is used for requiring a service node of a service chain to verify a to-be-verified service function node so as to verify the service chain, and sending a verification result to an inspection node; and the service node comprisesa service function node and a service function forwarding node.

Description

technical field [0001] Embodiments of the present disclosure relate to the technical field of service chains, and in particular to a method for verifying service chains, a sending node, a service function forwarding node, and a service function node. Background technique [0002] Service Function Chain (SFC) is a technology that provides orderly services to the application layer. By adding service chain path information in the message, the message can pass through the service function equipment in sequence according to the specified path, so that the network The service functions (Service Function, SF) on the device are connected on a logical level to form an orderly combination of service functions. For example, the logical structure of the business chain can refer to Figure 17 . [0003] In order to ensure the correctness of business chain deployment, after the business chain orchestration is completed, it needs to be verified from the data plane, such as verifying wheth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/725H04L12/721
CPCH04L45/34H04L45/30H04L45/02H04L63/12H04L45/54
Inventor 刘尧
Owner ZTE CORP
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