1054 - SCCP rcvd inv LSS - bad SSN

The SCCP received a message destined to a local subsystem that was discarded because of a bad subsystem number (SSN).

Example

This output indicates an error against the original destination rather than the redirected destination.

RLGHNCXA21W 02-07-21 16:20:19 EST  EAGLE 37.5.0
0241.1054    CARD 1101,A1  INFO      SCCP rcvd inv LSS - bad SSN
                 SIO=03   OPC=1-200-2           DPC=3-054-4
                 CDPA LENGTH=019   MSG TYPE=04
                 CDPA: AI=05 PC=1-050-1          SSN=006 TT=007
                       ADDR=ABCDEF0123456789ABCDE
                 LSN=ABCD123
                 Report Date:02-07-21  Time:16:20:19

This alternate output includes the redirected destination and is used when a redirected MSU encounters an error.

RLGHNCXA21W 02-07-21 16:20:19 EST  EAGLE 37.5.0
0241.1054    CARD 1101,A1  INFO      SCCP rcvd inv LSS - bad SSN
                 SIO=03   OPC=1-200-2           DPC=3-054-4
                 CDPA LENGTH=019   MSG TYPE=04
                    GTT on CdPA used MOSMSGTA=9193802053
                 CDPA: AI=05 PC=1-050-1          SSN=006 TT=007
                       ADDR=ABCDEF0123456789ABCDE
                 LSN=ABCD123
                 Report Date:02-07-21  Time:16:20:19

Legend

ADDR

Address

CDPA

Called party address

CGPA

Calling party address

gti

Global title indicator

LSN

Linkset name. The name must be unique.

msg type

Message type

nai

Nature of address indicator

ni

Network indicator value

np

Numbering plan

OPC

Origination point code

PC

Point code for the SS7 end user (OPC).

pci

Protocol control information

RI

Routing indicator

SIO

Service information octet

SSN

Subsystem number

ssni

Subsystem number indicator

TT

Translation type

Alarm Level: No alarm condition. The message is informational only.

Recovery

The EAGLE 5 ISS supports only one subsystem.

All other local subsystem numbers are invalid. Check translations on the originating switch to determine the problem.