Unsolicited Messages

There are two types of unsolicited messages that are generated, alarm messages (UAMs) and information messages (UIMs).

Link Unavailability UAMs

The signaling link UAM format includes a CLASS output. This identifies the corresponding link as either an MTP2 or SAAL link class (the SAAL link class is used for high-speed signaling links).

Example:

    0044.0200    SLK 1201,A sp1        RCVRY-LKF: link available
                 SLC=01   FECLLI=A1234567890                CLASS=SAAL

    0044.0200    SLK 1202,A sp2        RCVRY-LKF: link available
                 SLC=01   FECLLI=A1234567890                CLASS=MTP2

Table C-3 provides a summary of high-speed signaling link and low-speed signaling link unavailable reasons listed from highest priority to lowest.

Table C-7 shows the UAMs that correspond link failures on an high-speed signaling link. All signaling link alarms have a severity level of major, except for UAM 200, which shows that the link failure has been cleared. All alarms are output to the Link Maintenance output group.

Table C-7 Signaling Link Unsolicited Alarm Messages

Link Failure	UAM Number	UAM Text
Recovery: Link Available	0200	RCVRY-LKF: link available
Failure: Remote NE Loopback	0201	REPT-LKF: remote NE loopback
Failure: Hardware Problems	0202	REPT-LKF: HWP - too many link interrupts
Failure: Failed Remote FE Loopback	0202	REPT-LKF: remote FE loopback
Failure: MTP3 Changeover Order (COO) Message Received	0218	REPT-LKF: COO - rcvd changeover order
Management Inhibit: Remote	0234	REPT-LKF: RMI remote inhibited
Management Inhibit: Local	0235	REPT-LINK-MGTINH: local inhibited
Failure: Unresolved - Default failure reason	0236	REPT-LKF: not aligned
Failure: False Congestion Restart	0236	REPT-LKF: false congestion restart
Failure: MTP Link Restart Delayed	0236	REPT-LKF: MTP link restart delayed
Excessive Duration of Far End Receiving Congestion	0237	REPT-LKF: LM Timer NO-CREDIT expired
Excessive Delay of Acknowledgment	0238	REPT-LKF: XDA - Timer NO-RESPONSE expired
Local Processor Outage(management initiated)	0239	REPT-LKF: MBL - local processor outage
SSCF Remote Release: Remote Processor Outage	0240	REPT-LKF: rcvd SSCOP END-proc. outage
SSCF Remote Release: Out of Service	0241	REPT-LKF: rcvd SSCOP END-out of service
SSCF Remote Release: Protocol Error	0242	REPT-LKF: rcvd SSCOP END-protocol error
SSCF Remote Release: Management Initiated	0243	REPT-LKF: rcvd SSCOP END-mgmnt initiated
Facility Outage - DS1 Loss of Signal failure	0244	REPT-LKF: FAC - DS1 LOS failure
Facility Outage - DS1 Loss of Frame failure	0245	REPT-LKF: FAC - DS1 LOF failure
Facility Outage - DS1 Loss of Cell Delineation failure	0246	REPT-LKF: FAC - DS1 LCD failure
Excessive In Service Error Rate	0247	REPT-LKF: XER - ISERM threshold exceeded

UIMs

There are two types UIMs generated with ATM high-speed signaling links, UIMs for large MSUs and UIMs for the loopback tests. UIMs 1172 and 1173 are generated for MTP MSUs (1172) and SCCP MSUs (1173).

The large MSUs are discarded at the receiving ATM high-speed signaling link rather than the outbound link.

UIM 1172 Example

0018.1172    CARD 1103    INFO  REPT-OVSZMSG: MTP MSU too large to route.
             LEN=279  SIO=03  DPC=001-001-001  OPC=002-002-002
             LSN=A1234567
    Report Date: 97-10-30  Time: 16:27:19

UIM 1173 Example

0018.1173    CARD 1103    INFO  REPT-OVSZMSG: SCCP MSU too large to route.
             LEN=279  SIO=03  DPC=001-001-001  OPC=002-002-002  MSG TYPE=09
             CDPA:  AI=8B  PC=003-003-003  SSN=005  TT=250  ADDR=1234567890
             CGPA:  AI=8B  PC=004-004-004  SSN=006  TT=251  ADDR=0123456789
             LSN=A1234567
    Report Date: 97-10-30  Time: 16:27:19

The UIMs shown in Table C-8 are generated when loopback tests performed on the ATM high-speed signaling link are completed.

Table C-8 Loopback Test UIMs

UIM #	Severity	Message Text	UIM is Generated When …
1156	None	Loopback success	loopback test passes.
1157	None	Loopback failed	loopback test failed.
1158	None	Loopback aborted	request to activate link is received while running a loopback.
1159	None	Loopback in progress	loopback request received while the same loopback test is already in progress.
1170	None	Loopback prevented	loopback setup was not performed because the specified type of loopback requires a BOC to be transmitted and this function was prevented from transmitting a BOC.
1171	None	Loopback invalid	loopback setup was not performed because invalid parameters were provided.