R21xx-HP FlexFabric 11900 Fundamentals Command Reference

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• During an ISSU to a compatible version on a multichassis IRF fabric, use issu run switchover to
perform a master/subordinate switchover.
• During an ISSU to an incompatible version on a multichassis IRF fabric, use issu run switchover to
perform a master/subordinate switchover and upgrade all members that have not been upgraded.
Syntax
issu run switchover
Views
User view
Predefined user roles
network-admin
Usage guidelines
In standalone mode, this command is necessary only if the device has two MPUs:
• For a compatible version, this command depends on the ISSU method:
{ Incremental upgrade—Performs a process-level active/standby switchover for the processes to
be upgraded.
{ Reboot upgrade or ISSU upgrade—Reboots the current active MPU with the old software
version to cause the upgraded MPU to become the new active MPU and upgrades the LPUs
and switching fabric cards.
• For an incompatible version, this command reboots the current active MPU and the LPUs and
switching fabric cards with the new software version, causing the upgraded MPU to become the
new active MPU. After the reboot, the original active MPU and the LPUs and switching fabric cards
are upgraded and the ISSU process ends.
In IRF mode, this command is necessary only if the IRF fabric has multiple members or has only one
member but the member has two MPUs.
If the IRF fabric has only one member and the member has two MPUs, this command performs the
following operations:
• For a compatible version, the operations depend on the ISSU method:
{ Incremental upgrade—Performs a process-level active/standby switchover for the processes to
be upgraded.
{ Reboot upgrade or ISSU upgrade—Reboots the current active MPU with the old software
version to cause the upgraded MPU to become the new active MPU and upgrades the LPUs
and switching fabric cards.
• For an incompatible version—Reboots the current active MPU, LPUs, and switching fabric cards with
the new software version, causing the upgraded MPU to become the new active MPU. After the
reboot, the original active MPU, the LPUs, and the switching fabric cards are upgraded, and the
ISSU process ends.
If the IRF fabric has multiple members, this command performs the following operations:
• For a compatible version, the operations depend on the ISSU method:
{ Incremental upgrade—Performs a process-level master/subordinate switchover for the
processes to be upgraded.