시스템에서 사용하고 있는 프로토콜들의 사용통계량 확인하기

[root@sulinux ~]#netstat -s

Ip:

    8138 total packets received

    0 forwarded

    0 incoming packets discarded

    8102 incoming packets delivered

    2664 requests sent out

Icmp:

    2 ICMP messages received

    0 input ICMP message failed.

    ICMP input histogram:

        destination unreachable: 2

    2 ICMP messages sent

    0 ICMP messages failed

    ICMP output histogram:

        destination unreachable: 2

IcmpMsg:

        InType3: 2

        OutType3: 2

Tcp:

    142 active connections openings

    5 passive connection openings

    120 failed connection attempts

    1 connection resets received

    2 connections established

    2697 segments received

    2572 segments send out

    0 segments retransmited

    0 bad segments received.

    240 resets sent

Udp:

    82 packets received

    2 packets to unknown port received.

    0 packet receive errors

    84 packets sent

TcpExt:

    2 TCP sockets finished time wait in fast timer

    301 delayed acks sent

    1 delayed acks further delayed because of locked socket

    1 packets directly queued to recvmsg prequeue.

    1 packets directly received from prequeue

    473 packets header predicted

    499 acknowledgments not containing data received

    514 predicted acknowledgments

    0 TCP data loss events

    20 connections reset due to unexpected data

IpExt:

    InMcastPkts: 35

    OutMcastPkts: 41

    InBcastPkts: 5319

[root@sulinux ~]#