plesk sever getting abnormal shutdown

[pijush]

one of our plesk(rhel 3)server is down automatically

messages showing from /var/log/messages -->

Aug 5 09:01:56 pleskserver01 kernel: GEN-DUMP: IN=eth0 OUT= MAC=00:c0:9f:38:23:de:00:d0:02:76:c8:00:08:00 SRC=xx.xx.xx.xx DST=xx.xx.xx.xx LEN=55 TOS=0x00 PREC=0x00 TTL=60 ID=43424 DF PROTO=UDP SPT=53 DPT=59583 LEN=35

what will be the reason ?

this messages coming as a flood and somtimes server is not responding .

 

[pijush]

anyway .. still no solution/suggestion .. one more query ..

this is the line what am talking about from /var/log/messages

Aug 5 09:01:56 server01 kernel: GEN-DUMP: IN=eth0 OUT= MAC=00:c0:9f:38:23:de:00:d0:02:76:c8:00:08:00 SRC=xx.xx.xx.xx DST=xx.xx.xx.xx LEN=55 TOS=0x00 PREC=0x00 TTL=60 ID=43424 DF PROTO=UDP SPT=53 DPT=59583 LEN=35

MAC=00:c0:9f:38:23:de:00:d0:02:76:c8:00:08:00

is this a MAC addr of source or destination , generally MAC having 6 field, if it is a combination of source and destination MAC , then why 4 more values are there ?
any comment or suggestion ?

 

[hardweb]

If there is something not related to the crash, than the messages above are. They describe the traffic flow on the ports, sources, destinations, etc.