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Default
The automatic rollback timer is set to 45 minutes.
Views
System view
Predefined user roles
network-admin
Parameters
minutes: Specifies the automatic rollback interval, in the range of 0 to 120 minutes. Setting it to 0
disables automatic rollback.
Usage guidelines
The automatic software version rollback feature is only available during an ISSU to a compatible
version when the IRF fabric has multiple members.
The system starts the automatic rollback timer when you execute the issu run switchover
command in a scenario where automatic rollback is supported. If you do not execute the issu accept
or issu commit command before the timer expires, the system automatically rolls back to the
software version used before the ISSU.
Change to the automatic rollback interval does not take effect on the ongoing ISSU process.
Examples
# Set the automatic rollback timer to 50 minutes.
<Sysname> system-view
[Sysname] issu rollback-timer 50
Related commands
issu rollback
issu run switchover
Use issu run switchover to perform an ISSU switchover.
Syntax
issu run switchover
Views
User view
Predefined user roles
network-admin
Usage guidelines
Use this command on a multichassis IRF fabric.
• For a compatible upgrade, this command performs operations depending on the ISSU method.
{ Incremental upgrade—Performs a process-level master/subordinate switchover for the
processes to be upgraded.
{ Reboot upgrade or ISSU upgrade—Reboots the current master with the old software
version, causing the upgraded subordinate member to be elected as the new master.
• For an incompatible upgrade, the issu load command splits the IRF fabric into two fabrics, with
the upgraded members forming a new fabric. The issu run switchover command reboots the
members in the old IRF fabric with the upgrade images to upgrade the members. After startup,
the members join the new IRF fabric as subordinate members.
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