Method for sending stream rules, path calculation element and path calculation client

A technology of path calculation unit and path calculation client, which is applied in the field of communication and can solve problems such as packet loss, out-of-sequence, and traffic that cannot be forwarded in a timely manner according to flow rules.

Active Publication Date: 2017-04-26
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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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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  • Method for sending stream rules, path calculation element and path calculation client
  • Method for sending stream rules, path calculation element and path calculation client
  • Method for sending stream rules, path calculation element 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

Embodiments of the present invention provide a method for sending flow rules, a path calculation element (PCE), a path calculation client (PCC) and a system. The method comprises the following steps: the PCE generates a corresponding relationship between the path identification information and a flow rule; and the PCE sends a communication protocol PCEP message of the path calculation element to the PCC, wherein the PCEP message contains the corresponding relationship between the path identification information and the flow rule and the flow rule is used for guiding the PCC to forward a flow matched with the flow rule according to the path identification information. The PCE comprises a processing unit used for generating a corresponding relationship between the path identification information and the flow rule, and a sending unit used for sending the PCEP message to the PCC, wherein the PCEP message contains the corresponding relationship between the path identification information and the flow rule and the flow rule is used for guiding the PCC to forward a flow matched with the flow rule according to the path identification information. According to the technical scheme of the embodiments of the present invention, the flow matched with the flow rule can be timely forwarded.

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 establishment of the Resource Reservation Protocol-TE (RSVP-TE) Traffic engineering label switching path (TE-Label Switch Path, TE-LSP), or each router node on the PCE control path reserves resources, and distributes labels and establishes TE-LSP; PCC through the command line interface (Command Line Interface, CLI) Or configure flow ...

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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