-bash-3.2$ uname -a Linux ansalin07 2.6.18-194.8.1.el5 #1 SMP Thu Jul 1 19:07:06 EDT 2010 i686 i686 i386 GNU/Linux -bash-3.2$ netstat -s Ip: 2460389252 total packets received 13475 with invalid addresses 0 forwarded 0 incoming packets discarded 2460370930 incoming packets delivered 1250033632 requests sent out 9562 reassemblies required 4715 packets reassembled ok Icmp: 113083 ICMP messages received 4553 input ICMP message failed. ICMP input histogram: destination unreachable: 96945 echo requests: 9234 echo replies: 2352 address mask request: 1 131655 ICMP messages sent 0 ICMP messages failed ICMP output histogram: destination unreachable: 98154 echo request: 24267 echo replies: 9234 IcmpMsg: InType0: 2352 InType3: 96945 InType8: 9234 InType9: 4551 InType17: 1 OutType0: 9234 OutType3: 98154 OutType8: 24267 Tcp: 1073167 active connections openings 1104827 passive connection openings 143 failed connection attempts 9418 connection resets received 16 connections established 2458688006 segments received 1249567700 segments send out 6545 segments retransmited 0 bad segments received. 5891 resets sent Udp: 109484 packets received 105776 packets to unknown port received. 0 packet receive errors 327908 packets sent TcpExt: 5 invalid SYN cookies received 39 resets received for embryonic SYN_RECV sockets 999040 TCP sockets finished time wait in fast timer 537846 time wait sockets recycled by time stamp 938134 delayed acks sent 6409 delayed acks further delayed because of locked socket Quick ack mode was activated 78392 times 769 times the listen queue of a socket overflowed 769 SYNs to LISTEN sockets ignored 414736 packets directly queued to recvmsg prequeue. 346861766 packets directly received from backlog 49056391 packets directly received from prequeue 2249477215 packets header predicted 349444 packets header predicted and directly queued to user 8419387 acknowledgments not containing data received 188326371 predicted acknowledgments 5682 congestion windows recovered after partial ack 0 TCP data loss events 39 timeouts after SACK recovery 2 retransmits in slow start 6215 other TCP timeouts 78483 DSACKs sent for old packets 217 DSACKs received 26 connections reset due to unexpected data 2 connections aborted due to timeout IpExt: InMcastPkts: 4554 InBcastPkts: 1326206 OutBcastPkts: 4683 -bash-3.2$ vmstat 1 10 procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------ r b swpd free buff cache si so bi bo in cs us sy id wa st 2 0 136 38872 3332 927648 0 0 1 1 7 0 2 1 96 1 0 1 0 136 38624 3332 927672 0 0 0 0 1016 7499 33 30 37 0 0 1 0 136 38500 3332 927672 0 0 0 0 1005 7845 36 31 34 0 0 1 0 136 38252 3332 927672 0 0 0 0 1011 7473 33 31 37 0 0 1 0 136 38004 3332 927672 0 0 0 0 1008 7799 34 32 34 0 0 2 0 136 37756 3344 927660 0 0 0 24 1016 7471 31 31 39 1 0 1 0 136 37756 3344 927660 0 0 0 0 1007 7829 32 34 34 0 0 1 0 136 37508 3344 927672 0 0 0 0 1005 7474 32 30 38 0 0 1 0 136 37260 3344 927672 0 0 0 0 1009 7755 33 33 35 0 0 1 0 136 37012 3344 927672 0 0 0 0 1008 7459 31 32 38 0 0 -bash-3.2$ netstat -s Ip: 2460694029 total packets received 13475 with invalid addresses 0 forwarded 0 incoming packets discarded 2460675707 incoming packets delivered 1250338277 requests sent out 9562 reassemblies required 4715 packets reassembled ok Icmp: 113083 ICMP messages received 4553 input ICMP message failed. ICMP input histogram: destination unreachable: 96945 echo requests: 9234 echo replies: 2352 address mask request: 1 131655 ICMP messages sent 0 ICMP messages failed ICMP output histogram: destination unreachable: 98154 echo request: 24267 echo replies: 9234 IcmpMsg: InType0: 2352 InType3: 96945 InType8: 9234 InType9: 4551 InType17: 1 OutType0: 9234 OutType3: 98154 OutType8: 24267 Tcp: 1103173 active connections openings 1134827 passive connection openings 143 failed connection attempts 9418 connection resets received 16 connections established 2458992739 segments received 1249872327 segments send out 6552 segments retransmited 0 bad segments received. 5891 resets sent Udp: 109494 packets received 105776 packets to unknown port received. 0 packet receive errors 327919 packets sent TcpExt: 5 invalid SYN cookies received 39 resets received for embryonic SYN_RECV sockets 999044 TCP sockets finished time wait in fast timer 540527 time wait sockets recycled by time stamp 939403 delayed acks sent 6573 delayed acks further delayed because of locked socket Quick ack mode was activated 78392 times 769 times the listen queue of a socket overflowed 769 SYNs to LISTEN sockets ignored 424736 packets directly queued to recvmsg prequeue. 346861766 packets directly received from backlog 49066391 packets directly received from prequeue 2249487554 packets header predicted 349444 packets header predicted and directly queued to user 8503718 acknowledgments not containing data received 188346454 predicted acknowledgments 5682 congestion windows recovered after partial ack 0 TCP data loss events 39 timeouts after SACK recovery 2 retransmits in slow start 6222 other TCP timeouts 78483 DSACKs sent for old packets 217 DSACKs received 26 connections reset due to unexpected data 2 connections aborted due to timeout IpExt: InMcastPkts: 4554 InBcastPkts: 1326240 OutBcastPkts: 4683