Show Issu Comp-Matrix - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

show issu comp-matrix

To display information regarding the In Service Software Upgrade (ISSU) compatibility matrix, use the
show issu comp-matrix command.
Syntax Description negotiated
stored
xml
Defaults This command has no default settings.
Command Modes User EXEC mode
Command History Release
12.2(31)SGA
Usage Guidelines Before attempting an ISSU, you should know the compatibility level between the old and the new Cisco
IOS software versions on the active and the standby supervisor engines. ISSU will not work if the two
versions are incompatible.
The compatibility matrix is available on Cisco.com so that you can also veiw in advance whether an
upgrade can be performed with the ISSU process. The compatibility matrix during the ISSU process and
later by entering the show issu comp-matrix command. To display information on the negotiation of the
compatibility matrix data between two software versions on a given system, use the show issu
comp-matrix negotiated command.
Compatibility matrix data is stored with each Cisco IOS software image that supports ISSU capability.
To display stored compatibility matrix information, use the show issu comp-matrix stored command.
The compatibility matrix information are built-in any Cisco IOS ISSU image. The ISSU infrastructure
performs a matrix lookup as soon as the communication with the standby supervisor engine is
established. There are three possible results from the lookup operation:
•
•
OL-27596 -01
show issu comp-matrix {negotiated | stored | xml}
Displays negotiated compatibility matrix information.
Displays stored compatibility matrix information.
Displays negotiated compatibility matrix information in XML format.
Modification
This command was introduced on the Catalyst 4500 series switch.
Compatible—The Base-level system infrastructure and all optional HA-aware subsystems are
compatible. In-service upgrade or downgrade between these versions will succeed with minimal
service impact.
Base-Level Compatible—One or more of the optional HA-aware subsystems are not compatible.
Although an in-service upgrade or downgrade between these versions will succeed, some
subsystems will not be able to maintain their state during the switchover. Prior to attempting an
in-service upgrade or downgrade, the impact of this on operation and service of the switch must be
considered carefully.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
show issu comp-matrix
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