$ netstat -sP tcp
$ netstat -sP [프로토콜명] // ip, ipv6, icmp, icmpv6, igmp, udp, tcp, rawip
TCP 네트웍의 성능을 보여준다.
tcpRtoAlgorithm = 4 tcpRtoMin = 400
tcpRtoMax = 60000 tcpMaxConn = -1
tcpActiveOpens = 8376 tcpPassiveOpens = 2922
tcpAttemptFails = 228 tcpEstabResets = 2599
tcpCurrEstab = 26 tcpOutSegs =33921409
tcpOutDataSegs =28287103 tcpOutDataBytes =3090291542
tcpRetransSegs = 881 tcpRetransBytes =104772
tcpOutAck =5632817 tcpOutAckDelayed =5075854
tcpOutUrg = 0 tcpOutWinUpdate = 2509
tcpOutWinProbe = 114 tcpOutControl = 21047
tcpOutRsts = 1141 tcpOutFastRetrans = 24
tcpInSegs =30464852
tcpInAckSegs =22266225 tcpInAckBytes =3090200312
tcpInDupAck = 14450 tcpInAckUnsent = 0
tcpInInorderSegs =13533358 tcpInInorderBytes =3045785092
tcpInUnorderSegs = 146 tcpInUnorderBytes = 82454
tcpInDupSegs = 46 tcpInDupBytes = 5922
tcpInPartDupSegs = 6 tcpInPartDupBytes = 2936
tcpInPastWinSegs = 0 tcpInPastWinBytes = 0
tcpInWinProbe = 34 tcpInWinUpdate = 44
tcpInClosed = 43 tcpRttNoUpdate = 154
tcpRttUpdate =22258597 tcpTimRetrans = 2412
tcpTimRetransDrop = 30 tcpTimKeepalive = 7069
tcpTimKeepaliveProbe= 1833 tcpTimKeepaliveDrop = 0
tcpListenDrop = 0 tcpListenDropQ0 = 0
tcpHalfOpenDrop = 0 tcpOutSackRetrans = 65
$ netstat -m : 소켓버퍼 확인
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