here are some IOS commands that you might find usefull. If there is a (config) command in the list, than the next listed command will be enabled by it.
to check wether cef is operational:
show ip cef summary
check if cef is operational on linecards:
show cef line
clear cef commands:
clear cef line ?
check ipc for cef:
show ipc ?
check interfaces:
show cef int
check fib:
show ip cef (+detail for adjanencies)
check layer 2 rewrites:
show ip arp (ip address)
show adjancency internal | begin (ip address)
check cef load balancing:
sh ip cef 0.0.0.0 0.0.0.0 internal
cef loadbalancing packet accounting:
(config)ip cef accounting load-balance-hash
cef traffic statistics:
sho cef line
sho cef int stat
sho cef int (interface) Y
sh int (interface) stat
(config)ip cef traffic-statistics ?
cef accounting:
(config) ip cef accounting ?
sh cef not-cef-switched
sh cef drop
troubleshoot cef table:
(config)ip cef table ?
sho ip cef events
sho ip cef events trace
sho ip cef events summ
(config)ip cef table ?
show ip cef inconsistency records detail
CEF bug???
show ip cef
exec all show ip cef
show ip cef inc rec detail
exec slot show ip cef inc rec detail
show tech cef
last option:
debug ip cef ?
clear cef linecard
clear ip route
clear ip cef inconsistency
contact TAC
last resort: upgrade code?
