[CentOS] lost udp packets

m.roth at 5-cent.us m.roth at 5-cent.us
Thu Oct 4 13:56:30 EDT 2012


James Pifer wrote:
>> I'd try strace'ing the app that is supposed to be receiving them to
>> see if the socket opens are working and what happens with a packet
>> arrives on the port.
>>
>
>
> No idea what this means. snmptrapd keeps running (strace snmptrapd -f
> -Le -c /etc/snmp/snmptrapd.conf), but I see this over and over after the
> initial start:
>
> gettimeofday({1349372532, 120897}, NULL) = 0
> gettimeofday({1349372532, 120917}, NULL) = 0
> gettimeofday({1349372532, 120934}, NULL) = 0
> gettimeofday({1349372532, 120950}, NULL) = 0
> select(9, [3 5 7 8], [], [], {5, 0})    = 0 (Timeout)
<snip>
Do you have ntp running on all the servers?

      mark



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