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A method and device for reducing redundant traffic in a PBB network

A technology of redundant traffic and equipment, applied in the field of communication, to avoid flooding, reduce redundant traffic, and save bandwidth resources

Active Publication Date: 2016-06-29
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, when device D does not send a message to device A (for example, when device A continues to send logs to device D, device D does not need to reply to device A), BEB1 cannot generate the message that device A sends to device D. The unicast PBB entry used, that is, BEB1 needs to continuously send multicast PBB packets in multicast mode, resulting in the transmission of a large number of unnecessary packets; The packets sent by the device, the packets sent by BEB3 to the corresponding devices in the private network through downlink port 5, etc., are all unnecessary packets

Method used

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  • A method and device for reducing redundant traffic in a PBB network
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  • A method and device for reducing redundant traffic in a PBB network

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Embodiment Construction

[0039] Aiming at the problems existing in the prior art, an embodiment of the present invention provides a method for reducing redundant traffic in a PBB network, which is applied to a PBB network including multiple BEB devices, so as to figure 2 It is a schematic diagram of the application scenario of the embodiment of the present invention. Uplink port 1 of BEB1, uplink port 2 and uplink port 3 of BEB2, and uplink port 4 of BEB3 are designated as the uplink port of the same VSI, and downlink port 1 of BEB1 and downlink port of BEB2 Corresponding service instances are created on port 2 and downlink port 3, and downlink port 4 and downlink port 5 of BEB3, and the service instances are associated with the above-mentioned VSI instance. It should be noted, figure 2 The shown application scenario is only a specific simplified application scenario of the present invention, and the application of the technical solution of the present invention is not limited to figure 2 The appl...

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Abstract

The invention discloses a method and a device for reducing a redundant flow in a PBB network. The method comprises the steps as follows: whether a unicast PBB entry corresponding to a source C-MAC (customer-media access control) address and a source B-MAC (backbone-media access control) address which are carried by a multicast PBB message is maintained on a BEB (backbone edge bridge) device is judged when the BEB device receives the multicast PBB message; if not, the source C-MAC address and the source B-MAC address are utilized to generate a corresponding unicast PBB entry; if yes, when a target C-MAC address carried by the multicast PBB message is confirmed to be an MAC address of a device in a private network connected with the BEB device, a unicast PBB message is sent from an outlet port of the unicast PBB entry corresponding to the source C-MAC address and the source B-MAC address which are carried by the multicast PBB message; and a source C-MAC address carried by the unicast PBB message is the target C-MAC address carried by the multicast PBB message, and a source B-MAC address carried by the unicast PBB message is the MAC address of the BEB device. According to the embodiment of the invention, the bandwidth resource can be saved.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a method and equipment for reducing redundant traffic in a PBB (ProviderBackboneBridge, operator backbone bridge) network. Background technique [0002] The PBB protocol encapsulates the user network MAC (C-MAC, or CustomerMAC) address in the backbone network MAC (B-MAC, or BackboneMAC) address through the MAC (MediaAccessControl, Media Access Control) address nesting, so that different users Services are isolated, and switches in the operator's network do not need to maintain a huge user MAC address table. Among them, PBB is a Layer 2 VPN (Virtual Private Network, virtual private network) technology, which performs unified external encapsulation through a VSI (Virtual Switch Instance, virtual switching instance) of an L2VPN (Layer 2 VPN). [0003] Such as figure 1 As shown, it is a schematic diagram of a PBB network (also known as PBBN, a network using the P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/801H04L29/06
Inventor 杜文俊
Owner XINHUASAN INFORMATION TECH CO LTD
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