Displaying Issu Compatibility Matrix Information - Cisco Catalyst 4500 Series Configuration Manual

Chapter 5 Configuring the Cisco IOS In-Service Software Upgrade Process
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This example shows how to display stored information regarding the compatibility matrix:
Switch# show issu comp-matrix stored
Number of Matrices in Table = 1
Dynamic(0) was introduced in Cisco IOS Release 12.2(50)SG with the Dynamic Image Version
Compatibility (DIVC) feature. With DIVC, Dynamic(0) is stored instead of Incomp(1), Base(2), or
Comp(3). Compatibility is determined during runtime when two different DIVC-capable images are
running in the active and standby supervisor engines during ISSU.
For Catalyst 4500 switches, a value of Dynamic(0) in the stored compatibility-matrix normally results
in Base(2) or Comp(3) upon rollback negotiation between the two images. You never observe Incomp(1)
as long as the other image name is present in the stored compatibility matrix.

Displaying ISSU Compatibility Matrix Information

The ISSU compatibility matrix contains information about other IOS XE software releases and the
version in question. This compatibility matrix represents the compatibility of the two software versions,
one running on the active and the other on the standby supervisor engine, and the matrix allows the
system to determine the highest operating mode it can achieve. This information helps the user identify
whether to use ISSU.
This task shows how to display information about the ISSU compatibility matrix:
OL-25340-01
ISSU IGMP Snooping clientNon-Base
ISSU C4K Chassis client
ISSU C4K Port client
ISSU C4K Rkios client
ISSU C4K HostMan client
ISSU C4k GaliosRedundancyBase
(1) Matrix for cat4500-ENTSERVICES-M(112) - cat4500-ENTSERVICES-M(112)
==========================================
Start Flag (0xDEADBABE)
My Image ver:
Peer Version
------------
12.2(31)SGA5
12.2(44)SG
12.2(31)SGA6
12.2(31)SGA7
12.2(46)SG
12.2(44)SG1
12.2(31)SGA8
12.2(50)SG
12.2(31)SGA9
12.2(50)SG1
12.2(50)SG2
12.2(52)SG
12.2(31)SGA10
12.2(50)SG3
12.2(53)SG
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
Base
Base
Base
Base
12.2(53)SG
Compatibility
-------------
Base(2)
Base(2)
Base(2)
Base(2)
Base(2)
Base(2)
Base(2)
Dynamic(0)
Base(2)
Dynamic(0)
Dynamic(0)
Dynamic(0)
Base(2)
Dynamic(0)
Comp(3)
Performing the ISSU Process
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