Osmocom Libraries » libosmo-sccp + libosmo-sigtran

On a rhizomatica deployment of osmo-msc + osmo-bsc I saw a series of bursts of these after some hours of operation:

DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3456)[0x555555e9f740]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3455)[0x555555e9f9a0]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3463)[0x555555d2d450]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3462)[0x555555d1d860]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3461)[0x555555a5d200]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3460)[0x555555836d20]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3459)[0x555555a1c7b0]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3466)[0x555555ba5830]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3465)[0x555555a2c140]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3464)[0x555555d91620]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3454)[0x555555c235d0]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted
DLSCCP ERROR sccp_scoc.c:1698 SCCP-SCOC(3453)[0x555555d42630]{DISCONN_PEND}: Event RCOC-ERROR.ind not permitted

The BSC side for this is:

May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0
May 13 12:59:16 huautla-bsc osmo-bsc[5253]: DLSCCP NOTICE sccp_scoc.c:1597 Received message for opc=185=0.23.1 on conn with mismatching remote pc=0=0.0.0

Unfortunately I have no pcap file.

The error disappeared automatically just as it appeared...