OOTB means? and below figure is the /proc/net/sctp/snmp, any idea $ cat /proc/net/sctp/snmp SctpCurrEstab 0 SctpActiveEstabs 26061 SctpPassiveEstabs 204235 SctpAborteds 811874 SctpShutdowns 196524 SctpOutOfBlues 19104636 SctpChecksumErrors 3070 SctpOutCtrlChunks 3515894374 SctpOutOrderChunks 43687436 SctpOutUnorderChunks 5244253158 SctpInCtrlChunks 3820268182 SctpInOrderChunks 2553760409 SctpInUnorderChunks 2741444705 SctpFragUsrMsgs 197031085 SctpReasmUsrMsgs 207379860 SctpOutSCTPPacks 6407590023 SctpInSCTPPacks 6719200223 SctpT1InitExpireds 18041179 SctpT1CookieExpireds 365 SctpT2ShutdownExpireds 486 SctpT3RtxExpireds 4543012 SctpT4RtoExpireds 0 SctpT5ShutdownGuardExpireds 2 SctpDelaySackExpireds 2595840671 SctpAutocloseExpireds 0 SctpT3Retransmits 4527700 SctpPmtudRetransmits 3341 SctpFastRetransmits 4155577 SctpInPktSoftirq 6711421746 SctpInPktBacklog 7744553 SctpInPktDiscards 19253619 SctpInDataChunkDiscards 4248038 On Sun, Jul 2, 2017 at 1:11 AM, Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx> wrote: > Hi, > > On Sun, Jul 02, 2017 at 01:02:36AM +0800, Sun Paul wrote: >> Hi >> >> we have a setup that running normal, however, we found that some of >> the conenctions are not able to establish and we (server) send ABORT >> right after receiving COOKIE_ECHO. >> >> any idea? > > Several reasons.. if it's not triggering a duplicate cookie processing, > it's being processed on sctp_sf_do_5_1D_ce(). Have a look at it to have > a better idea. Two reasons that stands out are somehow the cookie was > interpreted as an OOTB packet or the tcp-style listening socket got its > backlog full. > > It can also be due to an out of memory situation, which is not often the > case. > > OOTB packets are accounted for in netstat -s or /proc/net/sctp/snmp. > > Marcelo > -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
