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

A technology for a path calculation unit and a path calculation client, applied in the field of communication, which can solve the problems of traffic not being forwarded in time according to flow rules, out of sequence, and packet loss.

Active Publication Date: 2020-05-08
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Embodiments of the present invention provide a flow rule sending method, a path computation element (PCE), a path computation client (PCC), and a system. The method comprises: a PCE generates a correspondence between path identification information and flow rules; and the PCE sends a path computation element communication protocol (PCEP) message to a PCC, the PCEP message carrying the correspondence between the path identification information and the flow rules, and the flow rules being used for instructing the PCC to forward a traffic matching the flow rules according to the path identification information. The PCE comprises: a processing unit, used for generating a correspondence between path identification information and flow rules; and a sending unit, used for sending a PCEP message to a PCC, the PCEP message carrying the correspondence between the path identification information and the flow rules, and the flow rules being used for instructing the PCC to forward a traffic matching the flow rules according to the path identification information. By means of the technical solution in the embodiments of the present invention, a traffic matching flow rules 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 Patents(China)
IPC IPC(8): H04L12/723H04L12/717
CPCH04L45/42H04L45/50
Inventor 梁乾灯陈霞陈国义尤建洁
Owner HUAWEI TECH CO LTD
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