Cisco Catalyst 4500 Series Command Reference Manual page 830

show issu state
Related Commands Command
issu abortversion
issu acceptversion
issu commitversion
issu loadversion
issu runversion
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0SG and IOS 15.1(1)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
Description
Cancels the ISSU upgrade or the downgrade process in
progress and restores the switch to its state before the start
of the process.
Halts the rollback timer and ensures that the new Cisco IOS
software image is not automatically stopped during the
ISSU process.
Loads the new Cisco IOS software image into the new
standby supervisor engine.
Starts the ISSU process.
Forces a change from the active supervisor engine to the
standby supervisor engine and causes the newly active
supervisor engine to run the new image specified.
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