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ISSU Introduction

88 New and Enhanced Features in AlliedWare Plus 5.4.4 Major and Minor Versions

Use the issu boot command to complete the automatic phase of the ISSU operation.

Example To upgrade a system with a release file in the Flash, SBx81CFC960-5.4.5-1.2.rel, use the

command:

Initiating the ISSU Manual Phase

In order to complete the ISSU process all the LIFs must be rebooted. You use the reboot

card command to successively reboot each line card in your switch.

Example To reboot the line card in slot 1 of chassis 2, use the command:

If the specified card does not exist in the chassis, the command is rejected.

Errors and Recovery

If an error occurs during the ISSU process (such as a CFC failing to rejoin the chassis, or the

Active CFC leaving the stack) the ISSU process will halt, and one of two conditions can

result:

■ If the ISSU process fails before the new active master CFC is running the new release,

then the boot system configuration is reset, and the old release reverts to being the

primary release. In effect, the stack returns to its pre ISSU condition.

■ If the new Active CFC is running the new release, the new release becomes the

primary release

Either situation requires manual intervention by rebooting all stack members that are not

running the same release as the stack Active CFC.

If the ISSU process aborts, the reason can be viewed by displaying the show issu

command. You can use this show output and the logs produced to help determine the

cause of the failure. The most common failure is likely to be due to the node rejoin time

expiring. This could be because the configuration takes too long to replay, and the CFC

cannot rejoin the stack before the rejoin timer expires. If this happens a solution might be

to increase the value of the node rejoin timer.

Example To display the ISSU state, use the command:

awplus#

issu boot SBx81CFC960-5.4.5-1.2

awplus>

enable

awplus#

reboot card 2.1

reboot card 2.1 system? (y/n): y

awplus#

show issu

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AMF 110 Dokumentacja Strona 94