Maintenance Object Repair Procedure
555-233-142
8-964 Issue 1 May 2002
PPP-PT (Control LAN Packet/Port)
The TN799 Control LAN (C-LAN) packet port circuit pack provides TCP/IP
connection to adjuncts applications such as CMS, Intuity, and DCS Networking.
The C-LAN circuit pack has 1 10baseT Ethernet connection and up to 16 DS0
physical interfaces for PPP connections. Multiple C-LAN circuit packs in a system
gives additional TCP/IP capacity.
An RSCL (remote socket control link) connects the C-LAN and the server to pass
call-control and other management information. Since one link serves every port
on the circuit pack, maintenance of the RSCL is part of the C-LAN circuit pack
maintenance.
NOTE:
The TN799 C-LAN circuit pack combines the functions of the PGATE and PI
circuit packs into one circuit pack. The PGATE or PI can be used with the
C-LAN to create an X.25 to TCP/IP bridge for adjunct and DCS connectivity.
Control LAN Congestion Controls
The switch activates congestion controls on C-LAN when it detects buffers
exceeding the threshold. The switch releases the congestion controls when the
C-LAN reports that its buffer level has returned to normal levels.
MO’s Name (in
Alarm Log) Alarm Level Initial Command to Run
1
1. UU is the universal cabinet number (1–64). C is the carrier designation (A, B, C, or D). SS is the number of the
slot where the circuit pack resides (01–10). pp is the 2-digit port number (01, 02,...).
Full Name of MO
PPP-PT MAJOR test port UUCSSpp long PPP Port Maintenance
PPP-PT MINOR test port UUCSSpp long PPP Port Maintenance
PPP-PT WARNING test port UUCSSpp PPP Port Maintenance
If congestion: Then the switch:
Persists for a 14-minute interval Raises MINOR alarm
Exhausts buffers Raises MINOR alarm
Ceases for 12 minutes Retires MINOR alarm
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