Switch method of main-standby routers connecting with main-standby interfaces of medium gateways

A technology of media gateway and router, applied in data exchange network, digital transmission system, error prevention, etc., to reduce costs and expand benefits

Inactive Publication Date: 2008-08-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the active and standby media interfaces of the media gateway device are connected to the access router through a switch, VRRP can be used to meet this requirement, but in this kind of networking without a switch, VRRP is powerless at this time

Method used

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  • Switch method of main-standby routers connecting with main-standby interfaces of medium gateways
  • Switch method of main-standby routers connecting with main-standby interfaces of medium gateways
  • Switch method of main-standby routers connecting with main-standby interfaces of medium gateways

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Embodiment Construction

[0047] The following describes the present invention in further detail with reference to the accompanying drawings and embodiments:

[0048] The core idea of ​​the present invention is: with the help of the characteristics of Supervlan (Vlan Aggregation, VLAN aggregation, that is, virtual local area network aggregation), that is, a Supervlan interface can directly communicate with devices under multiple Subvlan (sub-virtual local area networks) interfaces, and VRRP will run The two routers are connected through one of the Subvlan interfaces of the Supervlan. With the help of the Subvlan interface, the Supervlan interfaces of the two routers exchange VRRP packets for the election of the primary and backup routers. The router and the media gateway device are also connected through another Subvlan interface of this Supervlan interface, and the media gateway device communicates with the router Supervlan through the Subvlan. Then enable the uplink tracking function of VRRP, track the lin...

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Abstract

The invention discloses a switching method of the main and spare routers connected with the main and spare interfaces of a media gateway, including that (1) each router creates a Supervlan port, configures a Subvlan port and adds the Subvlan port to the Supervlan port; (2) the routers are connected with each other through the Subvlan ports of the Supervlan ports; each router is connected with the main and spare interfaces of the media gateway through another Subvlan port; (3) the Supervlan starts the VRRP function; the routers select the main router through exchanging the VRRP messages and tracks the link state between the current main router and the media gateway; (4) if the tracked link is down, the media gateway switches the main and spare interfaces automatically; the routers switch the main and spare interfaces through exchanging the VRRP messages. The switching method of the main and spare routers connected with the main and spare interfaces of a media gateway can realize the communication of the media gateway and the main and spare routers which operate VRRP and the switching of the main and spare routers.

Description

Technical field [0001] The invention designs the field of network communication, and particularly relates to a method for switching between active and standby routers connected to the active and standby interfaces of a media gateway. Background technique [0002] With the development of the network, people have higher and higher requirements for network reliability. People want to be able to communicate with the external network at all times. Statically configuring the default gateway should be the simplest and most efficient routing method. However, this method will lead to a single point of failure. The absence of the default router will lead to catastrophic events, because it will cause all end hosts to be isolated from the outside world, and they will not be able to detect any alternative paths that may be available. . [0003] In order to solve the above-mentioned problems, the Virtual Routing Redundancy Protocol (VRRP) came into being. VRRP is a fault-tolerant protocol, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/22H04L12/56H04L12/24H04L29/06H04L45/28
Inventor 程振苗
Owner ZTE CORP
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