Ping packet loss...

[Peter Kim]

Question,

I am pinging a host from Nexus 7K.  I'm losing every 200th packet when I'm pinging the end host.   I don't see any issue with network connection.

Does anyone have any idea in this kind of behavior?

Thanks.

[nkarpysh]

Hi Peter,

I would setup ethanalyzer on Nexus filtering for ICMP to catch all those packets and see if Nexus not getting reply from server or not sending echo by itself. The other posibility is to do a SPAN to see if we indeed sending/receiving echo.

This will help to narrow down problem to Nexus or server side.

Nik

[Oleksandr Nesterov]

Peter

If remote host is linux station -you can run tcpdump - to count number of echo requests, and

also you can check copp - whether ping replies are dropped.

Use "sh policy-map interface control-plane" and search for "

class-map copp-system-class-monitoring" whether there are aby drops.