netstat -s

Ip:
    768976 total packets received
    3 with invalid addresses
    0 forwarded
    0 incoming packets discarded
    768896 incoming packets delivered
    606093 requests sent out
    152 outgoing packets dropped
    6 dropped because of missing route
    46 reassemblies required
    2 packets reassembled ok
    256 fragments received ok
    512 fragments created
Icmp:
    638 ICMP messages received
    2 input ICMP message failed.
    ICMP input histogram:
        destination unreachable: 636
        timeout in transit: 2
    424 ICMP messages sent
    0 ICMP messages failed
    ICMP output histogram:
        destination unreachable: 424
IcmpMsg:
        InType3: 636
        InType11: 2
        OutType3: 424
Tcp:
    1010 active connections openings
    971 passive connection openings
    142 failed connection attempts
    156 connection resets received
    98 connections established
    161717 segments received
    145105 segments send out
    1089 segments retransmited
    0 bad segments received.
    266 resets sent
Udp:
    605862 packets received
    424 packets to unknown port received.
    204 packet receive errors
    483991 packets sent
    RcvbufErrors: 204
    IgnoredMulti: 140
UdpLite:
TcpExt:
    21 resets received for embryonic SYN_RECV sockets
    456 TCP sockets finished time wait in fast timer
    35 packets rejects in established connections because of timestamp
    1893 delayed acks sent
    2 delayed acks further delayed because of locked socket
    Quick ack mode was activated 170 times
    1738 packets directly queued to recvmsg prequeue.
    27365 bytes directly received in process context from prequeue
    69488 packet headers predicted
    1 packets header predicted and directly queued to user
    23498 acknowledgments not containing data payload received
    34517 predicted acknowledgments
    171 times recovered from packet loss by selective acknowledgements
    Detected reordering 3 times using SACK
    Detected reordering 2 times using time stamp
    3 congestion windows partially recovered using Hoe heuristic
    2 congestion windows recovered without slow start by DSACK
    48 congestion windows recovered without slow start after partial ack
    TCPLostRetransmit: 5
    3 timeouts after SACK recovery
    364 fast retransmits
    4 forward retransmits
    16 retransmits in slow start
    251 other TCP timeouts
    TCPLossProbes: 298
    TCPLossProbeRecovery: 5
    11 SACK retransmits failed
    193 DSACKs sent for old packets
    7 DSACKs sent for out of order packets
    89 DSACKs received
    5 connections reset due to unexpected data
    145 connections reset due to early user close
    TCPDSACKIgnoredOld: 3
    TCPDSACKIgnoredNoUndo: 44
    TCPSpuriousRTOs: 2
    TCPSackShifted: 1271
    TCPSackMerged: 1690
    TCPSackShiftFallback: 529
    TCPRcvCoalesce: 39542
    TCPOFOQueue: 6132
    TCPOFOMerge: 6
    TCPChallengeACK: 2
    TCPAutoCorking: 2101
    TCPSynRetrans: 467
    TCPOrigDataSent: 95197
    TCPHystartTrainDetect: 6
    TCPHystartTrainCwnd: 142
    TCPHystartDelayDetect: 19
    TCPHystartDelayCwnd: 726
    TCPACKSkippedPAWS: 26
    TCPKeepAlive: 10
IpExt:
    InMcastPkts: 689
    OutMcastPkts: 196
    InBcastPkts: 707
    OutBcastPkts: 514
    InOctets: 807104433
    OutOctets: 144480501
    InMcastOctets: 175218
    OutMcastOctets: 25352
    InBcastOctets: 44170
    OutBcastOctets: 27464
    InNoECTPkts: 799544
    InECT0Pkts: 35
    InCEPkts: 3