we found lots of entries when issue netstat command. seems the OS IP
stack level have issue. anyone faced this before?
sctp 1540 0 192.168.220.115:3868 172.10.116.169:3868
LISTEN
192.168.220.123 172.10.116.170
sctp 1540 0 192.168.220.115:3868 172.10.116.173:3868
LISTEN
192.168.220.123 172.10.116.174
sctp 1540 0 192.168.220.115:3868 172.10.116.169:3868
LISTEN
192.168.220.123 172.10.116.170
sctp 1540 0 192.168.220.115:3868 172.10.116.173:3868
LISTEN
192.168.220.123 172.10.116.174
sctp 1540 0 192.168.220.115:3868 172.10.116.169:3868
LISTEN
192.168.220.123 172.10.116.170
sctp 1540 0 192.168.220.115:3868 172.10.116.173:3868
LISTEN
192.168.220.123 172.10.116.174
sctp 1540 0 192.168.220.115:3868 172.10.116.169:3868
LISTEN
192.168.220.123 172.10.116.170
sctp 1540 0 192.168.220.115:3868 172.10.116.173:3868
LISTEN
192.168.220.123 172.10.116.174
sctp 1540 0 192.168.220.115:3868 172.10.116.169:3868
LISTEN
192.168.220.123 172.10.116.170
sctp 1540 0 192.168.220.115:3868 172.10.116.173:3868
LISTEN
192.168.220.123 172.10.116.174
sctp 1540 0 192.168.220.115:3868 172.10.116.173:3868
LISTEN
192.168.220.123 172.10.116.174
sctp 1540 0 192.168.220.115:3868 172.10.116.173:3868
LISTEN
192.168.220.123 172.10.116.174
On Sun, Jul 2, 2017 at 1:47 AM, Marcelo <marcelo.leitner@xxxxxxxxx> wrote:
> Means out of the blue below.
> Your stats are interesting, you have expired cookies and also bad checksum.
>
>
> Em 1 de julho de 2017 14:29:56 BRT, Sun Paul <paulrbk@xxxxxxxxx> escreveu:
>>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
>>>
>
> --
> Enviado de meu dispositivo Android com K-9 mail. Desculpe-me pela brevidade.
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