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Port state shift method

A port state, port technology, applied in the direction of digital transmission system, electrical components, transmission system, etc., can solve problems such as network interruption, and achieve the effect of preventing network interruption

Inactive Publication Date: 2009-06-10
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for port state migration to solve the technical problem of network interruption caused by a series of processes before entering the forwarding state when the existing port role changes for state migration

Method used

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Embodiment Construction

[0024] The core idea of ​​the present invention is: set the fast migration attribute for the required port, and then when the port is elected as a new role, skip the original necessary migration process, directly enter the learning state, and then migrate to the forwarding state.

[0025] see figure 1 , which is a flow chart of the first embodiment of the port state transition method disclosed in the present invention.

[0026] Step 110: set some ports as fast migration attributes;

[0027] A network running Spanning Tree Protocol (STP / RSTP / MSTP) contains a large number of bridges. Each bridge usually has multiple ports. You can configure fast migration properties for some of the ports according to actual needs, and the rest of the ports still use the default general properties. . Because link failures on the network are unpredictable, there is no unified standard on which ports to configure the fast migration attribute, and it can only be analyzed based on specific networki...

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Abstract

Present invention discloses port status migrant method, it contains to preset at least one terminal as quickly migration attribute, when terminal role converted to pre-set terminal, if said terminal is quickly migration attribute then directly entering learning state then migrating to retransmission state.

Description

technical field [0001] The invention relates to the field of computer network communication, in particular to a method for port state transition. Background technique [0002] Since the bridge relies on the MAC address and port correspondence table in the running network to forward data, if it receives a data packet with an unknown destination address, it can only address it in the form of broadcast, and the result is a ring network. A large amount of data traffic, that is, "broadcast storm", leads to the paralysis of the network. [0003] In order to solve the above-mentioned two-layer-based "broadcast storm" problem, IEEE (Institute of Electrical and Electronics Engineers) has developed Spanning Tree Protocol STP, Rapid Spanning Tree Protocol RSTP and Multiple Spanning Tree Protocol MSTP, which selectively block network redundancy link to achieve the purpose of eliminating the network layer 2 loop, thereby effectively suppressing the generation of broadcast storms. At th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/56
Inventor 徐鹏飞周万
Owner NEW H3C TECH CO LTD
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