Stream Control Transmission Protocol (SCTP)
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netstat -l | grep sctp
Ip: Forwarding: 2 617002 total packets received 0 forwarded 0 incoming packets discarded 617002 incoming packets delivered 608841 requests sent out 20 outgoing packets dropped Icmp: 465 ICMP messages received 43 input ICMP message failed ICMP input histogram: destination unreachable: 89 echo requests: 376 761 ICMP messages sent 0 ICMP messages failed ICMP output histogram: destination unreachable: 385 echo replies: 376 IcmpMsg: InType3: 89 InType8: 376 OutType0: 376 OutType3: 385 Tcp: 3077 active connection openings 14213 passive connection openings 105 failed connection attempts 40 connection resets received 3 connections established 615718 segments received 608833 segments sent out 4991 segments retransmitted 2032 bad segments received 8554 resets sent InCsumErrors: 2032 Udp: 424 packets received 395 packets to unknown port received 0 packet receive errors 464 packets sent 0 receive buffer errors 0 send buffer errors UdpLite: TcpExt: 94 resets received for embryonic SYN_RECV sockets 3274 TCP sockets finished time wait in fast timer 1 packetes rejected in established connections because of timestamp 31065 delayed acks sent 1 delayed acks further delayed because of locked socket Quick ack mode was activated 628 times 270348 packet headers predicted 72374 acknowledgments not containing data payload received 224959 predicted acknowledgments TCPSackRecovery: 71 Detected reordering 7 times using SACK Detected reordering 1 times using reno fast retransmit Detected reordering 1 times using time stamp 1 congestion windows partially recovered using Hoe heuristic TCPDSACKUndo: 6 122 congestion windows recovered without slow start after partial ack TCPLostRetransmit: 1 TCPSackFailures: 2 162 fast retransmits 5 retransmits in slow start TCPTimeouts: 1563 TCPLossProbes: 1827 TCPLossProbeRecovery: 544 TCPSackRecoveryFail: 10 TCPDSACKOldSent: 647 TCPDSACKOfoSent: 1 TCPDSACKRecv: 506 5 connections reset due to unexpected data 3 connections reset due to early user close 150 connections aborted due to timeout TCPDSACKIgnoredOld: 2 TCPDSACKIgnoredNoUndo: 351 TCPSpuriousRTOs: 1 TCPSackShifted: 47 TCPSackMerged: 92 TCPSackShiftFallback: 189 TCPRcvCoalesce: 28310 TCPOFOQueue: 663 TCPOFOMerge: 1 TCPFromZeroWindowAdv: 24 TCPToZeroWindowAdv: 24 TCPWantZeroWindowAdv: 13 TCPSynRetrans: 1197 TCPOrigDataSent: 474722 TCPHystartDelayDetect: 2 TCPHystartDelayCwnd: 64 TCPACKSkippedSeq: 3 TCPKeepAlive: 36 IpExt: InOctets: 1208553310 OutOctets: 1067402986 InNoECTPkts: 615863 InECT0Pkts: 4695 InCEPkts: 4 Sctp: 0 Current Associations 0 Active Associations 0 Passive Associations 0 Number of Aborteds 0 Number of Graceful Terminations 0 Number of Out of Blue packets 0 Number of Packets with invalid Checksum 0 Number of control chunks sent 0 Number of ordered chunks sent 0 Number of Unordered chunks sent 0 Number of control chunks received 0 Number of ordered chunks received 0 Number of Unordered chunks received 0 Number of messages fragmented 0 Number of messages reassembled 0 Number of SCTP packets sent 0 Number of SCTP packets received
- Ethernet: MII, MDI, bonding, etherchannel, STP, ARP, MAC, STP, Jumbo frames, 802.1X, MTU, Ethernet In-Band Access (IBA), LACP, Multicast, Broadcast, SPI
- Transport protocol, TCP/IP, UDP, SCTP, subnet mask, Routing protocols: BGP, routing table, Policy based routing, multicast, TCP Fast Open, RDP, TTL, RTT, MPTCP, Large send offload (LSO): (TSO, GRO, GSO, TCP checksum),
ethtool, SCTP, 5-Tuple, Check TCP connectivity