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Link aggregation method and device

A technology of link aggregation and equipment, applied in the field of communication, can solve problems such as failure to meet market demand

Active Publication Date: 2014-12-31
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing network technology architecture is gradually exposing many limitations, and to a certain extent, it can no longer meet the market demand

Method used

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  • Link aggregation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see figure 1 , figure 1 It is a schematic flowchart of the link aggregation method in Embodiment 1 of the present invention. Specific steps include:

[0032] Step 101, the SDN controller in the SDN network receives multiple LACP messages belonging to the same aggregation group forwarded by the SDN edge device.

[0033] The multiple LACP messages in this step are sent by network devices outside the SDN network, and the SDN edge device forwards them to the SDN controller after receiving them.

[0034] The LACP message in the specific embodiment of the present invention is the same as the LACP message sent when link aggregation is performed between network devices in a traditional network other than the SDN network.

[0035] In a traditional network other than the SDN network, after the LACP protocol is enabled on a certain port of the device, the port will notify the other end of its system priority, system MAC address, port priority, port number, and operation by send...

Embodiment 2

[0053] see figure 2 , figure 2 It is a schematic flowchart of the link aggregation method in Embodiment 2 of the present invention. The specific steps are:

[0054] Step 201, when any SDN edge device receives an LACP message sent by a network device outside the SDN network, it forwards it to the SDN controller.

[0055] Step 202, if the SDN edge device receives the LACP message sent by the SDN controller, it forwards the LACP message to the network device, and negotiates with the network device to complete link aggregation.

[0056] The LACP message sent by the SDN controller in this step indicates that the SDN controller selects the port on the SDN edge device that receives the LACP message sent by the network device as the selected port of the aggregation group according to the configured aggregation strategy.

[0057] When the SDN controller receives multiple LACP packets belonging to the same aggregation group sent by the SDN network device, it will determine whether ...

Embodiment 3

[0061] This embodiment describes in detail the specific processing process in the specific embodiment of the present invention when the aggregated link between the network device and the SDN edge device fails, or the SDN edge device is disconnected from the SDN network.

[0062] When the SDN controller perceives that any selected port in the aggregation group on the SDN network side is faulty, it notifies the network device that the selected port is no longer suitable for selection, and makes the SDN edge device where the selected port is located configure the selected port is an unselected port.

[0063] The SDN edge device configures the selected port as a non-selected port, including deleting the previously configured selected flag, or blocking the selected port.

[0064] When the SDN controller senses that the SDN edge device where any selected port in the aggregation group is located is disconnected from the network side, it notifies the network device that the selected p...

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PUM

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Abstract

The invention discloses a link aggregation method. The link aggregation method includes that an SDN (software defined networking) controller selects some ports as selected ports of an aggregation group from ports receiving the LACP messages on an SDN edge device via configured aggregation strategies according to LACP (link aggregation control protocol) messages transferred by the SDN edge device, and the LACP messages in the number identical with the selected ports are transmitted to notify a network device, so that the network device negotiates with the SDN edge device where the selected ports are located to complete link aggregation. On the basis of the same above idea, the invention further provides a link aggregation device through which the link aggregation of the SDN edge device and the network device outside the SDN network is realized.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a link aggregation method and device. Background technique [0002] The existing network technology architecture has gradually exposed many limitations, and to a certain extent has been unable to meet market demand. Software Defined Network (Software Defined Network, SDN) was born out of necessity. [0003] SDN is a new network architecture that physically separates the control and forwarding functions of the network, and enables programming of network applications at the control level. The control function located in the network equipment in the traditional network will be transferred to the accessible computing equipment, and the basic network equipment only retains the forwarding function part, and the entire network can be regarded as a logical or virtual whole. [0004] The main idea of ​​SDN is to control the entire network at one logical point, which...

Claims

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Application Information

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IPC IPC(8): H04L12/891H04L12/803H04L47/41H04L45/243H04L45/28H04L49/111
CPCH04L47/00H04L12/6418H04L47/10H04L45/64H04L41/0668H04L41/50H04L45/245H04L45/28H04L49/30
Inventor 吴蔷
Owner NEW H3C TECH CO LTD
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