[c-nsp] Cisco counters - Missing packets and frames ...

almog ohayon almog.purepeak at gmail.com
Tue Nov 23 08:14:57 EST 2010


Hi All,
lets say i have 2 devices connected directly with one link:
Cisco 1841 F0/0 ---- Cisco 3750 F0/24

When i mirrored the traffic between these 2 devices using SPAN i see many
EIGRP packets and CFM frames going from the
3750 switch to the Cisco 1841.
CFM and EIGRP are not configured on the Cisco 1841 so i expect from the 1841
to present this "unknown" traffic as DROPS or DISCARDS, in the counters
somewhere.

On my cacti graphs I see the difference between the outbound traffic of 3750
and the inbound of 1841.
How can i verify it by CLI command ? SNMP get ? which counter represent the
traffic that 1841 ignore ?

Thanks for your help,
--
Almog.


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