Edit: /proc/23/task/23/net/netstat (0B)
TcpExt: SyncookiesSent SyncookiesRecv SyncookiesFailed EmbryonicRsts PruneCalled RcvPruned OfoPruned OutOfWindowIcmps LockDroppedIcmps ArpFilter TW TWRecycled TWKilled PAWSActive PAWSEstab DelayedACKs DelayedACKLocked DelayedACKLost ListenOverflows ListenDrops TCPHPHits TCPPureAcks TCPHPAcks TCPRenoRecovery TCPSackRecovery TCPSACKReneging TCPSACKReorder TCPRenoReorder TCPTSReorder TCPFullUndo TCPPartialUndo TCPDSACKUndo TCPLossUndo TCPLostRetransmit TCPRenoFailures TCPSackFailures TCPLossFailures TCPFastRetrans TCPSlowStartRetrans TCPTimeouts TCPLossProbes TCPLossProbeRecovery TCPRenoRecoveryFail TCPSackRecoveryFail TCPRcvCollapsed TCPBacklogCoalesce TCPDSACKOldSent TCPDSACKOfoSent TCPDSACKRecv TCPDSACKOfoRecv TCPAbortOnData TCPAbortOnClose TCPAbortOnMemory TCPAbortOnTimeout TCPAbortOnLinger TCPAbortFailed TCPMemoryPressures TCPMemoryPressuresChrono TCPSACKDiscard TCPDSACKIgnoredOld TCPDSACKIgnoredNoUndo TCPSpuriousRTOs TCPMD5NotFound TCPMD5Unexpected TCPMD5Failure TCPSackShifted TCPSackMerged TCPSackShiftFallback TCPBacklogDrop PFMemallocDrop TCPMinTTLDrop TCPDeferAcceptDrop IPReversePathFilter TCPTimeWaitOverflow TCPReqQFullDoCookies TCPReqQFullDrop TCPRetransFail TCPRcvCoalesce TCPOFOQueue TCPOFODrop TCPOFOMerge TCPChallengeACK TCPSYNChallenge TCPFastOpenActive TCPFastOpenActiveFail TCPFastOpenPassive TCPFastOpenPassiveFail TCPFastOpenListenOverflow TCPFastOpenCookieReqd TCPFastOpenBlackhole TCPSpuriousRtxHostQueues BusyPollRxPackets TCPAutoCorking TCPFromZeroWindowAdv TCPToZeroWindowAdv TCPWantZeroWindowAdv TCPSynRetrans TCPOrigDataSent TCPHystartTrainDetect TCPHystartTrainCwnd TCPHystartDelayDetect TCPHystartDelayCwnd TCPACKSkippedSynRecv TCPACKSkippedPAWS TCPACKSkippedSeq TCPACKSkippedFinWait2 TCPACKSkippedTimeWait TCPACKSkippedChallenge TCPWinProbe TCPKeepAlive TCPMTUPFail TCPMTUPSuccess TCPDelivered TCPDeliveredCE TCPAckCompressed TCPZeroWindowDrop TCPRcvQDrop TCPWqueueTooBig TcpTimeoutRehash
TcpExt: 0 0 0 1306 0 0 0 9 70 0 143432 0 0 0 706714 78787 3900 2955 0 8 914683 68800256 52629899 255 1369 0 6602 58 1338 115 136 6 447 4492 91 61 195 48084 7435 4817 15635 182 69 132 0 3436244 2508 2 14489 6 27007 4682 0 528 0 0 0 0 0 0 7657 3 0 0 0 4661 20190 6894 0 0 0 218083 0 0 0 0 314 186988 12315 0 2 1380 151 0 0 0 0 0 16 0 2 0 47579904 15 15 1 2261 1728283406 1363 2597390 2472 1098364 16 678907 129 0 7 21 565 0 0 0 1728049051 0 1430 0 0 0 5469
IpExt: InNoRoutes InTruncatedPkts InMcastPkts OutMcastPkts InBcastPkts OutBcastPkts InOctets OutOctets InMcastOctets OutMcastOctets InBcastOctets OutBcastOctets InCsumErrors InNoECTPkts InECT1Pkts InECT0Pkts InCEPkts ReasmOverlaps
IpExt: 0 0 1625 0 128046 0 10980345618 2229172872890 58500 0 35171960 0 0 143279653 634 711 0 0
MPTcpExt: MPCapableSYNRX MPCapableSYNTX MPCapableSYNACKRX MPCapableACKRX MPCapableFallbackACK MPCapableFallbackSYNACK MPFallbackTokenInit MPTCPRetrans MPJoinNoTokenFound MPJoinSynRx MPJoinSynAckRx MPJoinSynAckHMacFailure MPJoinAckRx MPJoinAckHMacFailure DSSNotMatching InfiniteMapRx OFOQueueTail OFOQueue OFOMerge NoDSSInWindow DuplicateData AddAddr EchoAdd PortAdd AddAddrDrop MPJoinPortSynRx MPJoinPortSynAckRx MPJoinPortAckRx MismatchPortSynRx MismatchPortAckRx RmAddr RmAddrDrop RmSubflow MPPrioTx MPPrioRx RcvPruned SubflowStale SubflowRecover
MPTcpExt: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0