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Flow control method as well as VPWS network system

A flow control and network system technology, applied in the field of communication, can solve problems such as PE device bandwidth inconsistency, packet loss, etc., achieve the effect of improving forwarding efficiency and overcoming inconsistency in bandwidth

Inactive Publication Date: 2011-03-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention aims to provide a flow control method and a VPWS network system to solve the problem of packet loss caused by inconsistent bandwidths of PE devices at both ends of a virtual circuit

Method used

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  • Flow control method as well as VPWS network system
  • Flow control method as well as VPWS network system
  • Flow control method as well as VPWS network system

Examples

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] An embodiment of the present invention proposes a flow control method for accessing a VPWS network, the VPWS network includes a first PE and a second PE, and the first PE forwards data to the second PE, such as figure 1 As shown, the method includes the following steps:

[0025] Step S102, the first PE receives the interface parameter type length value information from the second PE, and the interface parameter type length value information carries the value of the access side interface bandwidth of the second PE;

[0026] Step S104, the first PE compares the value of the access-side interface bandwidth of the local machine with the value of the access-side interface bandwidth of the second PE;

[0027] Step S106, if the value of the bandwidth of the access-side interface of the first PE is greater than the value of the bandw...

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Abstract

The invention discloses a flow control method used for accessing the VPWS network. The VPWS network includes a first PE and a second PE; the first PE forwards data to the second PE; the method includes that the first PE receives the interface parameter type length value information from the second PE; the interface parameter type length value information carries the interface bandwidth value of accessing side of the second PE; the interface bandwidth value of the accessing side of the first PE is compared with the interface bandwidth value of the accessing side of the second PE; if the interface bandwidth value of the accessing side of the first PE is larger that the interface bandwidth value of the accessing side of the second PE; the interface bandwidth of the accessing side of the first PE is reduced to be not more than the interface bandwidth of the accessing side of the second PE. The invention also proposes a VPWS network system. Based on the flow control method used for accessing the VPWS network, the forwarding efficiency of the flow is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a flow control method for accessing a VPWS (Virtual Private Wire Service, virtual private wire service) network and a VPWS network system. Background technique [0002] The VPWS network is built on the basis of the MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) network, which provides high-speed Layer 2 transparent transmission of a pair of ports between two routers. It is a kind of L2VPN (Level 2 Virtual Private Network, Layer 2 virtual private network) technology. [0003] The main components of the VPWS network include: PE (Provider Edge, operator edge equipment) router, P (Provider, operator equipment), LDP (Label Distribution Protocol, label distribution protocol) and LSP Tunnel (Label Switch Path Tunnel, label switching tunnel ). [0004] The PE router maintains the link information of the Layer 2 transparent transmission directly connected to it,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/46H04L29/06H04L47/52
Inventor 杨扬
Owner ZTE CORP
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