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Method for equilibrating network-flow load and the third-level exchanger

A switching device and load balancing technology, applied in the communication field, can solve problems such as low network resource utilization, line congestion, and network transmission rate drop, and achieve the effects of reducing processing complexity, low upgrade cost, and simple implementation

Inactive Publication Date: 2010-02-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the encapsulated source MAC address of a data packet sent on a sending port of a third-layer switching device is unique, so for a data packet sent to the same next-hop receiving port, due to the encapsulated source MAC address Both the destination MAC address and the destination MAC address are fixed. After the data is sent to the second-layer switching device, the second-layer switching device cannot achieve load balancing for this part of the data packet.
However, in an actual network, the communication traffic between a certain sending port of a Layer 3 switching device and the receiving port of the next hop may be much higher than the maximum traffic of one of the multiple links interconnected between Layer 2 switching devices. If it cannot be load balanced, there may be line congestion and low utilization of network resources
[0004] The second-layer switching device can also perform load balancing according to the IP address of the data packet, but the layer-3 address of the message parsed by the second-layer switching device needs to increase the processing complexity of the second-layer switching device, resulting in a decrease in the network transmission rate

Method used

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  • Method for equilibrating network-flow load and the third-level exchanger
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  • Method for equilibrating network-flow load and the third-level exchanger

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Embodiment Construction

[0017] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, it is a network system diagram in the communication system, including two layer-3 switching devices (Router A and Router B) and two layer-2 switching devices (Switch A and Switch B), and two layer-2 switching devices They are connected by three physical links, link 1, link 2, and link 3. Data needs to be transmitted from port 1 of Router A to port 9 of Router B. For the convenience of understanding, this embodiment gives detailed steps for load balancing 9 data packets. The source IP and destination IP of these 9 data packets are only to illustrate the implementation process of the embodiment of the present invention, and do not serve as a reference to the implementation of this technical solution. limit...

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PUM

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Abstract

The method comprises: setting more than one MAC addresses on one sending port of layer-3 switching apparatus; in the process of sending data through said layer-3 switching apparatus, packaging different MAC address into different data packet; according to the different source MAC address and destination MAC address, the layer-2 switching apparatus selects different physical layer. The invention also reveals a layer-3 switching apparatus used for packaging different MAC addresses for the data packets sent from same sending end.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for balancing network flow loads and a layer-3 switching device in a communication network. Background technique [0002] With the development of communication technology, multimedia services are rapidly popularized, and network traffic is increasing day by day, which puts forward higher requirements on the carrying capacity of communication systems. In the communication transmission system, a single physical link can no longer meet the needs of network traffic, and multiple physical links are needed to jointly load balance, which requires network devices such as layer-3 switching devices or layer-2 switching devices to be able to pass certain The algorithm of load balancing distributes traffic to different physical links. The third-layer switching device refers to the third layer of the open system interconnection model (OSI), which is the switching device of the network layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L1/00H04L12/24H04L29/06H04L29/08H04L12/803
Inventor 解超杰
Owner HUAWEI TECH CO LTD