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There are two statistics from the BACS I am wondering if I should be concerned about: enter image description here

They are Out of Recv. Buffer and Rx. Packet Discarded. It looks like Out of Recv. Buffer is the cause of all the discard? In general will this just cause a TCP retransmit? They are pretty low counts, but are they a cause of concern?

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2 Answers 2

up vote 2 down vote accepted

Is this on a Windows box? If so, bring up perfmon and add the counters for Network Interface/Packets Receieved Errors for the interface(s) in question and see what it shows. I'm pretty sure MS considers anyhting above 0 a problem.

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Monitoring this now with SNMP via IF-MIB ifInDiscards –  Kyle Brandt Feb 8 '11 at 20:53

Buffer is the cause of all the discard?

CPU does not have time to handle all interrupts and buffer overflows. Therefore, packets drop.

In general will this just cause a TCP retransmit?

maybe, but you can see statistical TCP over netstat.

They are pretty low counts, but are they a cause of concern?

You can not worry too much small percentage drop.

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