1373 - TFC Generated for Congested Link

Implementation of auto decrementing of congestion abatement is multicast to all MTP cards (SRC and DEST).

In both ANSI and ITU networks, UIM 1373 indicates the level of congestion; for example, CONG STATUS=001 is a lower level of congestion than CONG STATUS=003 (the highest level of congestion).

For M3UA links, signaling congestion (SCON) network-management messages also report congestion:

• In an ANSI network, the value in the SCON always matches the value in UIM 1373.
• In a non-ANSI (ITU) network, SCON messages report only 0 (not congested) or 1 (congested), so the congestion value reported in UIM 1373 can differ from the value in the SCON. For example, if UIM 1373 reports CONG STATUS=002 or CONG STATUS=003, then the value in the related SCON will be 1 (not 2 or 3).

Example

    station1234 02-07-21 16:28:08 EST Rel 37.0.0 -46.12.0
    8441.1373    CARD 1101,A   INFO      TFC Generated for Congested Link
                 DPC=   001-115-000    CPC=   008-001-001
                 CONG SLK: 1305,A3     CONG STATUS=001
  Report Date:07-01-05  Time:16:20:19

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

Recovery

1. Use local troubleshooting procedures to determine the cause for congestion.