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3750 Upgrade

I was scheduled to upgrade all the 3750 switches in the basin precinct. This is 58 switches, Doing the same thing manually 58 times over is a) too repetitive, and b) too likely to be done inconsistently.

# get list of all switches to upgrade
netc -r 172.20.16 | grep -E 'fes|bds|tbs' > basin.3750.all
 
# check current status before we change anything
apply fping < basin.3750.all | tee basin.fping
apply apply.show_ver < basin.3750.all | tee basin.ver.all
apply apply.show_boot < basin.3750.all | tee basin.boot.all
grep path-list basin.boot.all | grep -v 19
 
# load new software, and check
apply apply.12.2.20 < basin.3750.all | tee basin.12.2.20
apply apply.show_ver < basin.3750.all | tee basin.ver.all.2
apply apply.show_boot < basin.3750.all | tee basin.boot.all.2
grep path-list basin.boot.all.2 | grep -v 20
 
# reload the fes's (remote edge of network)
grep fes basin.3750.all | apply /usr/local/bin/ciscoreload
apply apply.show_ver < basin.3750.all | tee basin.ver.all.3
 
# reload non-edge devices (fes's become unreachable again)
grep -v fes basin.3750.all | apply /usr/local/bin/ciscoreload
apply apply.show_ver < basin.3750.all | tee basin.ver.all.4
 
# check results using commands like
grep "12.1(1" basin.ver.all.4
wc basin.ver.all*
wc basin.boot.all*

These scripts are still a little bit rough, and you need to check their output carefully.

[ /monash | # ]