Method and device for carrier backbone bridge pbb traffic forwarding

A carrier backbone bridge and traffic forwarding technology, applied in the field of communication

Active Publication Date: 2012-02-08
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, since the traffic received by BEB1 only needs to be sent within I-SID1, broadcasting the traffic through the uplink port of BVLAN will cause the traffic to be transmitted in I-SID1 in the PBB network Unnecessary broadcast flooding on devices other than SID1

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  • Method and device for carrier backbone bridge pbb traffic forwarding
  • Method and device for carrier backbone bridge pbb traffic forwarding
  • Method and device for carrier backbone bridge pbb traffic forwarding

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Embodiment Construction

[0052] The core idea of ​​the present invention is: when the BEB in the PBB network configures I-SID instances, it specifies the BMACs of all PW peer devices under one or more I-SID instances, thereby establishing the relationship between the I-SID instance and the PW peer devices. Correspondence. When BEB receives unknown unicast or broadcast traffic, it determines all corresponding PW peer devices according to the I-SID instance of the traffic, and broadcasts unknown unicast or broadcast traffic in the I-SID instance to avoid unnecessary broadcasts in the PEE network flooding.

[0053] The present invention provides a method for forwarding PBB traffic of an operator's backbone bridge, which is applied to the backbone core bridge device BEB of the PBB network. When configuring an I-SID instance, the BEB specifies all PW pairs under one or more I-SID instances The BMAC corresponding to the terminal device, and establish the corresponding relationship between the I-SID instanc...

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Abstract

The invention discloses a method for forwarding PBB traffic of an operator's backbone bridge, which includes: when a BEB receives unknown unicast or broadcast traffic, acquires an I-SID instance corresponding to the unknown unicast or broadcast traffic; the BEB searches for configuration According to the corresponding relationship between the I-SID instance and the BMAC address, obtain the BMAC address corresponding to the I-SID instance; the BEB obtains all PW peer devices under the I-SID instance according to the BMAC address, and All PWs under the I-SID instance send the unknown unicast or broadcast traffic to each PW peer device. The invention avoids unnecessary broadcast flooding in the PBB network.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and equipment for PBB traffic forwarding. Background technique [0002] PBB (Provider Backbone Bridge, operator backbone bridge) technology was born in response to the needs of Metro Ethernet, also known as MAC-in-MAC, defined by the draft IEEE 802.1ah standard, is a MAC (Media Access Control, media access Control) stack technology mainly defines the frame structure of the double-layer MAC address, which is the same as the traditional MAC exchange in forwarding behavior. By encapsulating the user MAC in the carrier MAC and using secondary encapsulation to isolate user traffic, the scalability of Ethernet and the security of services are enhanced. The key of PBB is to introduce 24bit (bit) I-TAG (Service Instance Tag) in MAC-in-MAC encapsulation to identify services. In the service layered model of MAN (Metropolitan Area Network, Metropolitan Area Network), MAC-in-MAC ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/12H04L12/24H04L12/801
Inventor 宋小恒杨燕军彭剑远
Owner NEW H3C TECH CO LTD
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