Resource backup method and device

Abstract

The invention provides a resource backup method and device, and the method comprises the steps: dividing a resource index table into at least one resource index block, and transmitting the resource index block to a standby main controller, so as to enable the standby main controller to generate a backup resource index table according to the resource index block; periodically calculating first comparison information according to the resource index table; transmitting the first comparison information to the standby main controller, so that the standby main controller determines whether the standby resource index table is accurate or not according to the first comparison information; and transmitting the resource index block to the standby main controller again when a request message sent when the standby main controller determines that the standby resource index table is not accurate. The method guarantees that the standby resource index table is accurate in a mode of periodic detection and new backup, so as to solve a problem that the backup of the resource index table is not complete.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a resource backup method and device. Background technique [0002] With the rapid development of network technology, various packet forwarding devices are widely used. In order to improve the reliability of the message forwarding device, the message forwarding device usually adopts dual master control technology, that is to say, there are two master control devices inside the same message forwarding device, one is the main master control device, and the other is the standby device. master. Generally, the message forwarding device uses the active master control, but when the active master control fails, the standby master control will be activated. Since the routing information table contains several routing table items, these routing table items are arranged according to the information recorded in the resource index table, thus forming a routing information ta...

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, when the backup is performed, if there is congestion between the main and backup channels, the resource index table is partially lost, and the correct routing information table cannot be restored according to the complete resource index table, resulting in wrong arrangement of routing table items , causing the packet forwarding device to find the wrong routing table entry, which in turn causes packet forwarding errors

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