First written 2022-04-04; Last updated 2022-11-28
Cheat sheet for (not so) common Cisco commands which I need from time to time.
IOS: show platform hardware acl statistics utilization brief
IOS-XE (C3K, C9K): show platform hardware fed active fwd-asic resource tcam utilization
NX-OS: show hardware access-list resource utilization
IOS-XE (C3K, C9K)
Current traffic load in percent: show controllers utilization
Rate over interval: show int | inc line|minute
See Cisco Updates for model specific update instructions (separate page because there are lot of different ways to update Cisco devices).
IOS: verify /md5 $path
NX-OS: show file $path md5sum (or sha256sum, sha512sum)
IOS, IOS-XE, IOS-XR: ping $host df-bit repeat 1 size $size
$size is the size of the complete (IPv4) packet
NX-OS: ping $host df-bit count 1 size $size
$size is the size of the ICMP payload, (IPv4) packet size is $size + 28
NX-OS: Verify which ACLs are installed on the module:
show system internal access-list interface ethernet $x/$y input statistics module $z
Last updated 2022-11-28