Method, device and system for protecting operator backbone transmission service

A technology for transmitting services and protecting systems, applied in the field of mobile communications, can solve problems such as poor network survivability, and achieve the effect of overcoming low network survivability

Inactive Publication Date: 2009-09-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides a method, device and system for protecting the transmission services of the operator's backbone netwo

Method used

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  • Method, device and system for protecting operator backbone transmission service
  • Method, device and system for protecting operator backbone transmission service
  • Method, device and system for protecting operator backbone transmission service

Examples

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no. 1 example

[0019] Such as figure 1 As shown, it is a flow chart of the first embodiment of a method for protecting the transmission service of an operator's backbone network in the present invention, and the method specifically includes the following:

[0020] Step 101: Identify the service received from the access device, that is, the SI to which the data frame belongs, according to the port on the access side or the characteristics of the data frame, and the identifier of the SI is a service instance identifier (SI-ID).

[0021] Step 102, according to the received service, search for the protection group corresponding to the service, the protection group includes a PBB-TE tunnel and a PBB VLAN, and each PBB-TE tunnel in the protection group has a unique corresponding B-SA, B-DA and B-VID, the protection group is formed by binding at least one PBB-TE tunnel and one PBB VLAN according to the service attribute (user attribute), specifically: if the service attribute is point-to-point (Poi...

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Abstract

The invention relates to a method, a device and a system for protecting the operator backbone network transmission service; wherein the method comprises the following steps of: searching a protection group which corresponds to the service and has at least one operator backbone network bridge transmission engineering tunnel and an operator backbone network bridge virtual local area network; detecting whether the malfunction occurs to the operator backbone network bridge transmission engineering tunnel in the protection group or not; if so, the operator backbone network bridge virtual local area network in the protection group is started and used as a backup transmission passage of the operator backbone network bridge transmission engineering tunnel; and sending the service. The method, the device and the system realize the transmission of data frames by sending and receiving on the basis of the protection group, and overcomes the defect that the network survivability in the prior art is low.

Description

technical field [0001] The invention belongs to the field of mobile communication, in particular to a method, device and system for protecting transmission services of an operator's backbone network. Background technique [0002] Provider Backbone Transport (PBT) technology based on the IEEE802.1ah standard, also known as Provider Backbone Bridge-Transport Engineering (PBB-TE for short), is a The network bridge (Provider Backbone Bridge, hereinafter referred to as PBB) standard is improved. [0003] PBB adopts Media Access Control-in-MediaAccess Control (MAC-in-MAC) encapsulation, specifically: re-encapsulating end-user Ethernet data frames into carrier Ethernet frame headers , forming two Media Access Control (MediaAccess Control, hereinafter referred to as MAC) addresses, so that in the operator's core network, traffic is forwarded only according to the second encapsulated MAC address. [0004] On the basis of PBB, PBB-TE technology adopts static configuration forwarding...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L1/22H04L12/26H04L12/24
Inventor 魏家宏李军梅柳波
Owner HUAWEI TECH CO LTD
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