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Virtual router redundancy protocol (VRRP) state switching method and three-layer exchange equipment

A three-layer switching and state switching technology, applied in the field of communication, can solve problems such as VRRP state cannot be switched correctly

Active Publication Date: 2012-07-11
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The invention provides a VRRP state switching method and a three-layer switching device, which are used to solve the problem that the VRRP state cannot be switched correctly

Method used

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  • Virtual router redundancy protocol (VRRP) state switching method and three-layer exchange equipment
  • Virtual router redundancy protocol (VRRP) state switching method and three-layer exchange equipment
  • Virtual router redundancy protocol (VRRP) state switching method and three-layer exchange equipment

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Embodiment Construction

[0025] The embodiment of the present invention defines a special physical port (called a service port). The network service device may be used in special occasions. In this way, when judging the status of the VLAN interface based on the status of the physical port in the VLAN, it does not perceive the status of the service port, thereby solving the problem that the status of the VRRP protocol cannot be switched normally.

[0026] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] The embodiment of the present invention is applied to the VRRP+MSTP networking structure, and the following embodiments are based on figure 1 The shown VRRP+MSTP networking structure is described as an example.

[0028] exist figure 1 In the shown network structure, switch1 and switch2 belong to the three-layer switching equipment, and the VRRP protocol is enabled, and the function of monitoring the uplink interface is confi...

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Abstract

The invention discloses a virtual router redundancy protocol (VRRP) state switching method and three-layer exchange equipment. The method is applied to VRRP and multiple spanning tree protocol (MSTP) networking and comprises the following steps that: the three-layer exchange equipment monitors the state of three-layer interfaces arranged on the three-layer exchange equipment, when the failure of any one three-layer interface is monitored, a service forwarding port in a virtual local area network (VLAN) of the failed three-layer interface is inquired, when the condition that the service forwarding port in the normal state is not contained in the VLAN of the failed three-layer interface is determined, the priority level of the equipment in a VRRP backup group is reduced, and in addition, the lowered priority level is notified to other member equipment of the VRRP backup group so that the VRRP backup group is subjected to the state switching. When the VRRP state switching method and the three-layer exchange equipment are adopted, the problem that the VRRP state cannot be normally switched because the three-layer VLAN state judgment is inaccurate can be solved.

Description

technical field [0001] The invention relates to data exchange technology in the communication field, in particular to a VRRP state switching method and three-layer switching equipment. Background technique [0002] MSTP (Multiple Spanning Tree Protocol) is defined by the IEEE 802.1s standard. It is a Layer 2 management protocol. It eliminates Layer 2 loops by selectively blocking redundant links in the network. It also has the function of link backup. [0003] The MSTP protocol prunes the ring network into a ring-free tree network, avoiding the proliferation and infinite loop of messages in the ring network, and also provides multiple redundant paths for data forwarding, and realizes VLAN ( Virtual Local Area Network (Virtual Local Area Network) data load sharing. The specific characteristics of the MSTP protocol are as follows: [0004] (1) The MSTP protocol divides a switching network into multiple domains, and multiple spanning trees are formed in each domain, and the ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/46H04L45/28H04L45/586
Inventor 汪洪远
Owner NEW H3C TECH CO LTD
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