command to see dropped packets on ISR router

[D@1984]

Hi,

Is it a similar command for ISR router; like show asp drop on ASA, to see the dropped packets? I have some asymmetric routing issues and trying to capture the dropped packets.

Thanks

[Georg Pauwen]

Hello,

I think they introduced the 'show drops' command in XE starting with version 17.8.1., unlikely that you have that on your ISR...

https://www.cisco.com/c/en/us/td/docs/routers/C8000V/Troubleshooting/troubleshooting-guide-for-cisco-catalyst-8000v-edge-software/m_debug-packet-drops.pdf

[D@1984]

no, I dont have that command.

[MHM Cisco World]

there are two type of drop 
silent and non-silent drop 
as I know any drop because asym or l2 issue is silent i.e. there is no counter count these drop. 
what you can do 
using permit ACL with Log 
using debug 

but notice both effect the CPU, it can cause high CPU utilize.