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Method and device for realizing load sharing in multiple spanning tree protocol (MSTP) networking environment

A load sharing and networking technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as inability to adjust traffic, inability to achieve load sharing, and complicate network maintenance processes, to achieve load sharing, The effect of dynamic load sharing

Active Publication Date: 2011-05-11
XINHUASAN INFORMATION TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the existing mapping relationship between VLANs and instances is manually configured, which is a static configuration, the forwarding path of the VLAN service traffic of the same instance is fixed on a certain link. When the network is congested, it cannot be configured according to the load Traffic adjustment, so dynamic load sharing cannot be achieved
Moreover, this static configuration method will complicate the later network maintenance process

Method used

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  • Method and device for realizing load sharing in multiple spanning tree protocol (MSTP) networking environment
  • Method and device for realizing load sharing in multiple spanning tree protocol (MSTP) networking environment
  • Method and device for realizing load sharing in multiple spanning tree protocol (MSTP) networking environment

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Embodiment Construction

[0019] The present invention proposes a method for realizing load sharing in an MSTP networking environment, such as figure 1 For the method flowchart that the present invention proposes, comprise:

[0020] Step 101: the network device detects whether link congestion occurs, and if so, executes step 102;

[0021] Step 102: search for the VLAN that causes this link congestion, and search for an idle link, analyze the VLAN and the idle link that are found, determine that the VLAN that needs to adjust the mapping relationship will be adjusted from the mapping relationship with the original instance to the original instance according to the analysis results. The mapping relationship with the new instance.

[0022] After the above step 102, it may further include:

[0023] The network device generates the backup forwarding entry corresponding to the mapping relationship between the VLAN whose mapping relationship needs to be adjusted and the new instance, and sets the backup forw...

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Abstract

The invention provides a method and device for realizing load sharing in a multiple spanning tree protocol (MSTP) networking environment, wherein the method comprises the following steps: detecting whether a link is congested by a network device; if so, finding a VLAN (virtual local area network) causing the link congestion and finding an idle link, and analyzing the found VLAN and the found idle link; and determining to adjust the VLAN needed to be subjected to mapping relationship adjustment from the mapping relationship with the original embodiments to the mapping relationship with the novel embodiments according to the analyzing result. According to the invention, the flow can be adjusted based on the loading condition, thus the dynamic load sharing is realized.

Description

technical field [0001] The present invention relates to the technical field of Multiple Spanning Tree Protocol (MSTP, Multiple Spanning Tree Protocol), in particular to a method and device for realizing load sharing in an MSTP networking environment. Background technique [0002] MSTP is defined by the 802.1s standard formulated by IEEE. It can make up for the defects of Spanning Tree Protocol (STP), Rapid Spanning Tree Protocol (RSTP) and Per-VLAN Spanning Tree (PVST) protocols. It can not only quickly converge, but also make different VLANs The traffic is forwarded along its own path, thus providing a better load sharing mechanism for redundant links. The characteristics of MSTP are as follows: [0003] (1) MSTP associates the VLAN with the spanning tree by setting the corresponding relationship table between the VLAN and the spanning tree (that is, the VLAN mapping table). And the concept of "instance" is adopted to form a many-to-one mapping relationship between VLANs ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L12/803
Inventor 王佳炳
Owner XINHUASAN INFORMATION TECH CO LTD
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