Flow rule sending method, path calculation unit and path calculation client

一种路径计算单元、路径计算客户的技术，应用在通信领域，能够解决丢包、乱序、流量不能及时按照流规则进行转发等问题

Pending Publication Date: 2020-09-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method for sending flow rules, a path calculation unit, a path calculation client, and a system, which are used to solve the problem that user traffic cannot be forwarded in time according to flow rules, which may cause packet loss or disorder

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  • Flow rule sending method, path calculation unit and path calculation client
  • Flow rule sending method, path calculation unit and path calculation client
  • Flow rule sending method, path calculation unit and path calculation client

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Embodiment Construction

[0080] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0081] figure 1 It is a network schematic diagram of a TE network provided by an embodiment of the present invention.

[0082] Such as figure 1 As shown, the TE network may include nodes such as PCE and PCC, such as PCE 101 and PCE 102, PCC 103 and PCC 104. PCE 101 and PCE 102 may be located in different network management domains, and may exchange messages with each other. The network management domain may be an autonomous system (Autonomous System...

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Abstract

The embodiment of the invention provides a flow rule sending method, a path computation element PCE, a path computation client PCC and a system. The method comprises the following steps that: the PCEgenerates a corresponding relationship between path identification information and a flow rule; and the PCE sends a path computation element communication protocol PCEP message to a PCC, the PCEP message carries a corresponding relationship between path identification information and a flow rule, and the flow rule is used for guiding the PCC to forward flow matched with the flow rule according tothe path identification information. The PCE comprises a processing unit used for generating a corresponding relationship between path identification information and a flow rule; and the sending unitis used for sending a PCEP message to the PCC, the PCEP message carries the corresponding relationship between the path identification information and the flow rule, and the flow rule is used for guiding the PCC to forward the flow matched with the flow rule according to the path identification information. According to the technical scheme of the embodiment of the invention, the flow matched withthe flow rule can be forwarded in time.

Description

technical field [0001] The invention relates to the communication field, in particular to a flow rule sending method, a path calculation unit and a path calculation client. Background technique [0002] In a network where Traffic Engineering (TE) is applied, the process of service deployment is as follows: Path Computation Element (PCE) obtains the network topology, and then according to the request of Path Computation Client (Path Computation Client, PCC) and The TE parameter calculates the path, and then uses the Path Computation Element Communication Protocol (PCEP) to send the calculated path information to the PCC, and the PCC triggers the resource reservation protocol traffic engineering (Resource Reservation Protocol-TE, RSVP-TE) Establish a traffic engineering label switching path (TE-Label Switch Path, TE-LSP), or reserve resources for each router node on the PCE control path, and distribute labels and establish a TE-LSP; PCC through the command line interface (Comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/723H04L12/717H04L45/50H04L45/42
CPCH04L45/50H04L45/42
Inventor 梁乾灯陈霞陈国义尤建洁
Owner HUAWEI TECH CO LTD
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