Method for realizing multiple spanning tree software simulation

A technology of software simulation and implementation method, applied in the field of communication, can solve the problem that ASIC chip cannot support MSTP and so on
CN1829222AInactive Publication Date: 2006-09-06NEW H3C TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
NEW H3C TECH CO LTD
Publication Date
2006-09-06
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The present invention discloses a multiple tree generation software simulation implementation method, through software simulation solving current ethernet switchboard ASIC chip unable supporting MSTP problem. Said method includes under transmitting different VLANs message on different generation tree condition, when multiple generation tree protocol calculating one switchboard port to some VLAN being non-transmitting state, sublayer software deleting said port from said VLAN, simultaneously filtering said VLAN message from another switchboard corresponded port, if transmitting message link gone wrong then through MSTP protocol converging, to make said switchboard state becoming transmitting state on said port, at this point sublayer software adding said port in said VLAN, simultaneously canceling message filtering. The present invention increases new property for current network products through software mode.
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Description

technical field

[0001] The invention relates to the technical field of communication, in particular to a method for simulating multiple spanning trees through software inside a network communication device that only supports Spanning Tree Protocol (STP). Background technique

[0002] STP (Spanning Tree Protocol) is an important protocol for Layer 2 network applications. Its purpose is to prevent broadcast storms caused by ring structures in the network and ensure reliable availability of the network. In the network where STP is running, it can effectively block the network loop, ensure the logical non-ring structure of the network, and at the same time make the blocked link a backup link. When a fault occurs on the ring, the blocked link Normal operation can be resumed quickly. However, since all VLANs (Virtual Local Area Networks) in the STP protocol share one spanning tree, VLAN load balancing cannot be achieved. When the traffic on the network is too large, packets of a ...

Claims

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