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A method and device for load sharing of aggregation links

A technology for link aggregation and load sharing, applied in the communication field, can solve problems such as waste of resources and inability to realize load sharing of link aggregation

Active Publication Date: 2016-04-13
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] If the BEB device uses an aggregate link to access the SPBM network, the traffic between the two BEBs will choose the same outbound forwarding, because the outer Ethernet headers of all traffic are the same, and the traffic cannot achieve load sharing on the aggregate link.
In this way, only one physical link on the aggregated link is working, and the other links will be idle, resulting in a waste of resources

Method used

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  • A method and device for load sharing of aggregation links
  • A method and device for load sharing of aggregation links
  • A method and device for load sharing of aggregation links

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specific Embodiment

[0077] Since the BEB device is locally described as N virtual BEB devices, when receiving a message that needs to be sent to the SPBM network side, it no longer directly encapsulates the MAC address of the BEB device as the source MAC address of the outer Ethernet header, but describes Select a B-MAC address from the B-MAC addresses of the N virtual BEB devices, and the specific selection method is given in the following two types in specific embodiments of the present invention:

[0078] The first one is: the BEB device hashes the source MAC address and destination MAC address of the received message, determines whether the hash result is recorded locally, and if so, selects the B-MAC address corresponding to the recorded hash result as Source MAC address; otherwise, select a B-MAC address from the B-MAC addresses of the described N virtual BEB devices according to the preset rules as the source MAC address, and bind and record the hash result and the selected B-MAC address. ...

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Abstract

The invention discloses a method for sharing the load of an aggregation link. The method comprises the following steps of describing a BEB (Backbone Edge Bridge) device into a combination of N virtual BEB devices and one virtual BCB (Backbone Core Bridge) device by the BEB device in an SPBM (Shortest Path Bridge M-in-M) network by utilizing an LSP (Link State Protocol) message, wherein N represents the number of member ports of the BEB device accessed to the SPBM network; and selecting one B-MAC (Berkeley-Media Access Control) address from B-MAC addresses of the described N virtual BEB devices as a source MAC address when a message sent by a user side is received, carrying out MAC-in-MAC encapsulation on the received message, and transmitting the received message. Basing on the same inventive concept, the invention also provides a device. According to the device provided by the invention, the load sharing of SPBM flow on the aggregation link can be realized, and the utilization rate of the aggregation link can be increased.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method and device for load sharing of aggregation links. Background technique [0002] Shortest Path Bridge (ShortestPathBridge, SPB) is an Ethernet standard defined by IEEE802.1aq, which is a further extension of Multiple Spanning Tree Protocol (MSTP), and aims to construct a large flat non-blocking Layer 2 network. SPB uses ISIS-SPB to share the link status in the network. Each node in the network calculates the shortest path between nodes in parallel, avoiding the instability and partial link utilization efficiency caused by the use of Spanning Tree Protocol (STP). low deficiency. SPB configuration management is simple, low cost, and can be aimed at the application of Ethernet in the data center. [0003] 802.1aq defines two SPB modes: Q-in-Q mode based on 802.1ad and M-in-M mode based on 802.1ah. The SPB in M-in-M mode is called the shortest path bri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/803
Inventor 韩冰
Owner XINHUASAN INFORMATION TECH CO LTD