User guide

EVENT ACTIVITY AT NODE W AND Y ACTIVITY AT NODE X AND Z

1 Two links fails in Linkset W/Y

Alarms/Logs:

* CCS101 Link failure

* CCS164 Link unavailable

** CCS175 Routeset restricted

** CCS167 Route restricted

Possible PM, C7UP Logs & CCS198

SLMPR

Alarms/Logs:

** CCS167 Route restricted.

Note: CCS167 Route restricted alarm and

log notification are sent to every SS7 NODE

when a linkset fails and causes a route re-

striction.

3 All SS7 messaging diverted to links W/X. Estimate link W/X occupancy using C7LKSET

command QUERYTRF.

4 Action at nodes Y or Z control office prime and control center:

Follow detailed DMS-100 CCS alarm clearing procedures in current NTP 297-YYYY-543.

Action:

Network status information only, since no

other alarms or logs are available concerning

specific links.

5 Recovery Logs:

CCS102 Link Sync (one of the links) CCS155 Routeset available

CCS102 Link Sync (another link) CCS166 Route allowed

CCS163 Link available (one of the links) PM Logs

CCS163 Link available (another link)

Recovery Logs:

CCS166 Route allowed

CCS7 Fault scenario—between STP “Y” and SSP “W”—concerns both links failing in a linkset with two “A” links