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Method and communication device for determining path computation unit

A path calculation unit and path calculation technology, applied in the field of communication, can solve problems such as establishing PCEP sessions, and achieve the effect of improving efficiency and success rate

Active Publication Date: 2018-01-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and communication equipment for determining PCE to solve the problem of how to effectively establish a PCEP session

Method used

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  • Method and communication device for determining path computation unit
  • Method and communication device for determining path computation unit
  • Method and communication device for determining path computation unit

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Embodiment Construction

[0063] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] In order to facilitate real-time understanding of the present invention, the following will further explain and illustrate with specific embodiments in conjunction with the accompanying drawings, and the embodiments do not constitute a limitation to the embodiments of the present invention.

[0065] Due to the existence of various tran...

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Abstract

The embodiments of the present invention relate to a method and a communication device for determining a path calculation unit. By carrying the location information and transmission capability information of the PCE in the route advertisement message, the PCC is notified to the PCC, so that the PCC can transmit the PCE according to the transmission capability of the PCE in the route advertisement message. information, select a PCE that satisfies the transmission capability of the PCC for path calculation, so as to avoid the problem of failure to establish a PCEP session due to mismatch of transmission capabilities between the PCC and the PCE.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for determining a path computation element (PCE for short) and a communication device. Background technique [0002] PCE is a functional entity responsible for path calculation in the network, which can be an independent network device, or a device or application program on a network device; PCE is based on known network topology and constraints, according to the path calculation client (path computation) client (PCC for short) requests to calculate a path that satisfies the constraints. [0003] Usually, the PCC and the PCE and between the PCE and the PCE communicate through a path computation protocol (PCE communication protocol, PCEP for short), submit a path computation request and obtain a path computation result. The PCC first obtains information such as the location of the PCE, the scope of path calculation, adjacent PCEs, and path calculation capabilities throu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/701H04L45/42H04L45/122
CPCH04L45/126H04L45/42H04L45/04H04L63/08H04L63/166H04L63/20
Inventor 管红光
Owner HUAWEI TECH CO LTD
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