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Method and gateway equipment for resuming service after switching status of main/standby gateway device

A gateway device and state switching technology, which is applied in the field of communication, can solve problems such as long service interruption time and difficulty in meeting user network reliability requirements, and achieve the effect of shortening service interruption time

Inactive Publication Date: 2009-08-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this prior art, when the user equipment perceives the failure of the active gateway device and modifies the forwarding entry pointing to the active gateway device to point to the standby gateway, the service is interrupted, and when the number of forwarding entries is large, the service is interrupted The time is still relatively long, and it is difficult to meet the user's requirements for network reliability

Method used

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  • Method and gateway equipment for resuming service after switching status of main/standby gateway device
  • Method and gateway equipment for resuming service after switching status of main/standby gateway device
  • Method and gateway equipment for resuming service after switching status of main/standby gateway device

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Embodiment Construction

[0032] In order to express the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] figure 1 It is a schematic diagram of a basic networking solution in an embodiment of the present invention. see figure 1 , assuming that the gateway device 111 is the default active gateway device, the gateway device 112 is the standby gateway device, and the signaling of the gateway device is on the link between the gateway device 111—the switch 112—the switch 122—the gateway device 121 bearer.

[0034] The virtual redundant routing VRRP protocol is run between the gateway devices 111 and 121; the gateway devices 111, 121 and the user equipment 130 are all equipped with a graceful restart GR technology.

[0035] A BGP protocol connection is established between the user equipment 130 and the active gateway device 111 . ...

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Abstract

A method and a gateway device for service recovery when master and slaving gateway devices switched, the said gateway device includes a VRRP module embedding a switching notify module and a BGP module embedding a VRRP apperceiving module, and the VRRP protocol is functioned between said master and slaving gateway devices. The gateway device uses the VRRP virtual address as the source address of the BGP protocol when the BGP protocol connection between the user device and the gateway device is connected, and the new master gateway device establishes BGP protocol connection with the user device by GR manner, after the gateway devices switching the states between master and slaving, so that it is able to ensure the protocol connection is established smoothly between the user device and the new master gateway device. It can short the service interrupt time caused by switching the master and slaving states of the gateway device, and enhance the network reliability to meet the user's demand by this method.

Description

technical field [0001] The present invention relates to the field of communication, in particular to a method for service restoration after the state switching of active and standby gateway equipment and the gateway equipment. Background technique [0002] With the development of network technology, users have increasingly higher requirements for network reliability. User equipment usually requires access to dual gateway devices, and the virtual router redundancy protocol (Virtual Router Redundancy Protocol, VRRP) runs between the gateway devices, so that The switching of the equipment is transparent to the user equipment. In some scenarios, the user equipment is a Layer 3 device such as a router, and the gateway device running the VRRP protocol runs the BGP protocol to exchange routes with each other. In the prior art, in such an application scenario, if the failure of the active gateway device causes the state of the gateway device to switch, the user equipment removes th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66
CPCH04L69/40H04L45/56
Inventor 熊怡
Owner HUAWEI TECH CO LTD