Software upgrading method and device

Abstract

The invention discloses a software upgrading method and device. The method includes the steps that when an active main control panel determines that software upgrading needs to be currently conducted on a line-card panel based on an upgrading sequence, a route corresponding to the line-card panel which is currently upgraded stops issuing to neighbor network equipment, and the neighbor network equipment transfers flux sent to the line-card panel which is currently upgraded to other line-card panels; when the active main control panel determines that no flux passes through the line-card panel which is currently upgraded, software upgrading is conducted on the line-card panel which is currently upgraded; after software upgrading is conducted on the line-card panel which is currently upgraded, the line-card panel which is currently upgraded is registered by a standby main control panel, the standby main control panel issues the route corresponding to the line-card panel which is currently upgraded again to the neighbor network equipment, and then the neighbor network equipment sends flux to the line-card panel which is currently upgraded. According to the embodiment of the software upgrading method and device, when soft upgrading is conducted on the line-card panel, the flux sent by the neighbor network equipment is triggered to transfer flux which is sent to the line-card panel to the other line-card panels, and therefore the transferred flux is prevented from being lost.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a software upgrading method and equipment. Background technique [0002] Network devices (such as high-end switches or routers) generally adopt a frame structure, which generally includes two main control boards (the active main control board and the standby main control board) and multiple line card boards. The active main control board is in the running state, and is responsible for the management of the entire network equipment and the operation of various protocols; the standby main control board is in the backup state, and automatically switches to the running state when the main main control board is abnormal, and is responsible for The management of the entire network equipment and the operation of various protocols. The line card board is responsible for forwarding various messages, and there is a hardware forwarding chip on the line card board. The main main contr...

AI Technical Summary

Problems solved by technology

For software upgrades that are not compatible with the upgrade method, it is necessary to restart each main control board and each line card board on the network device. When restarting the line card board, the hardware forwarding chip on the line card board needs to be reset, so The hardware forwarding table entry will be deleted, and the hardware forwarding chip of the line card board cannot use the hardware forwarding table entry to forward packets, which will affect the forwarding traffic and cause the forwarding traffic to be lost

[0004] like figure 1 As shown, network device 1 and network device 2 are connected through network device A. When the software upgrade of network device A is incompatible, it will affect the forwarding traffic between network device 1 and network device 2, causing network device 1 to The forwarding traffic with network device 2 is lost, causing service interruption

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