Path selecting method and device

Abstract

The invention discloses a path selecting method. The method comprises that any equipment in networking obtains topology information of different downstream access devices in the networking, a vertical combination group is established for the different downstream access devices, and ports of the equipment which are capable of reaching the different downstream access devices are added into the vertical combination group established for the downstream access devices; when a unicast message which is required to be sent to any downstream access device is received, the unicast message is forwarded via one port in the vertical combination group established for the access devices; and if the vertical combination group comprises multiple ports, one port is selected in a load balancing algorithm to forward the unicast message. The invention also provides a path selecting device, which can balance downlink flow of the devices.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for selecting a path. Background technique [0002] Commonly used networks generally have aggregation devices and access devices, and access devices may be deployed in multiple levels. In traditional networking, this hierarchical networking has the following disadvantages: [0003] Device management and business management Each device is independently configured and managed, and the management complexity is high; and because the access device is much smaller than the convergence device in terms of performance and table item specifications, the access device is only divided into a part of the Virtual Local Area Network (Virtual Local Area Network) , VLAN). Different access devices may be assigned to different VLANs. In this case, access devices cannot communicate at Layer 2, but can only communicate at Layer 3 through aggregation device...

AI Technical Summary

Problems solved by technology

[0003] Device management and business management Each device is independently configured and managed, and the management complexity is high; and because the access device is much smaller in performance and table item specifications than the aggregation device, the access device is only divided into a part of the Virtual Local Area Network (Virtual Local Area Network) , VLAN)

Different access devices may be assigned to different VLANs. In this case, access devices cannot communicate at Layer 2, and can only communicate at Layer 3 through aggregation devices or higher-level devices.

At present, many applications have put forward requirements for the second layer. Obviously, this traditional hierarchical network cannot meet the requirements of the second layer.

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