Tag Archives: Cat4500

Maintenance: ISSU issues

An issue of ISSU was encountered during my work which I would like to record here and share with people who encountered similar or exactly the same problem. My client wished to upgrade a SGA train IOS into SG train … Continue reading

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Maintenance: ISSU process example

Switch-Active>enable Switch-Active#sh bootflash: 1 -rwx 13636500 Sep 6 2006 03:18:58 -08:00 cat4500-entservices-mz.122-31.SGA1 Switch-Active#sh slavebootflash: 1 -rwx 13636500 Sep 6 2006 03:18:58 -08:00 cat4500-entservices-mz.122-31.SGA1 Switch-Active#copy tftp:cat4500-entservices-mz.122-31.SGA5.bin bootflash: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Transfer completed. Switch-Active#copy tftp:cat4500-entservices-mz.122-31.SGA5.bin slavebootflash: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Transfer completed. Switch-Active#issu loadversion 3 bootflash:cat4500-entservices-mz.122-31.SGA5.bin 4 … Continue reading

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Maintenance: In Service Software Upgrade (ISSU) Guide

In Service Software Upgrade is a feature to upgrade your IOS with minimum or no impact. Important 1. Both supervisory engines must be in SSO mode. 2. IOS version must be compatible i.e. SGA train cannot be upgraded to a … Continue reading

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