Method and equipment for transmitting data among different MST (Multiple Spanning Tree) regions

A data transmission and equipment technology, applied in the field of communication, can solve problems such as the inability to realize VLAN load sharing

Active Publication Date: 2012-06-13
XINHUASAN INFORMATION TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] However, due to the different configurations of the mapping relationship between VLANs and MSTIs between different MST domains, in the prior art, VLAN load sharing cannot be achieved between different MST domains

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  • Method and equipment for transmitting data among different MST (Multiple Spanning Tree) regions
  • Method and equipment for transmitting data among different MST (Multiple Spanning Tree) regions
  • Method and equipment for transmitting data among different MST (Multiple Spanning Tree) regions

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Embodiment Construction

[0057] The present invention proposes a data transmission method between different MST domains. The method is applied to an MSTP network including multiple MST domains. All devices in multiple MST domains are configured with public VLAN and instance mapping relationships and private The mapping relationship between VLANs and instances, and the mapping relationship between private VLANs and instances configured on devices in the same MST domain is the same, and the mapping relationship between public VLANs and instances configured on devices in different MST domains is the same.

[0058] Specifically, you need to configure the private VLAN-instance mapping relationship and the public VLAN-instance mapping relationship for each device; the private VLAN-instance mapping relationship is used for load sharing in the same MST domain (that is, devices in the same MST domain are mapped according to the private VLAN and instance relationship to generate MSTI in the MST domain for load s...

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Abstract

The invention discloses a method and equipment for transmitting data among different MST (Multiple Spanning Tree) regions. The method comprises the following steps that: virtual proxy equipment in an MST region calculates the forwarding states of each region boundary port in the MST region on different embodiments according to a common VLAN (Virtual Local Area Network)-embodiment mapping relation; the virtual proxy equipment informs equipment where the region boundary port is positioned of the forwarding state; and the equipment where the region boundary port is positioned transmits data to equipment in other MST regions according to the forwarding state. In the invention, load sharing of flow among different MST regions can be realized.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method and equipment between different MST domains. Background technique [0002] MSTP (Multiple Spanning Tree Protocol, Multi-instance Spanning Tree Protocol) has the following characteristics: (1) MSTP sets VLAN (Virtual Local Area Network, Virtual Local Area Network) and spanning tree correspondence table (i.e. VLAN mapping table), and VLAN and Spanning tree is used to communicate; and through the concept of instance, multiple VLANs are bundled into one instance to save communication overhead and reduce resource occupancy. (2) MSTP prunes the ring network into a ring-free tree network to avoid the circulation of messages in the ring network; it provides multiple redundant paths for data forwarding to realize load sharing. (3) MSTP divides a switching network into multiple MST (Multiple Spanning Tree, Multiple Spanning Tree) domains. Each MST...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L45/28
Inventor 王佳炳
Owner XINHUASAN INFORMATION TECH CO LTD
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