Nortel Networks 1000 - Manual (Page 239)

Man-Machine T1 maintenance interface software 239
Alarm Log
3/03/95 1:48 Yellow alarm on T1 carrier
3/03/95 1:50 Initialized Memory
3/03/95 2:33 T1 carrier level 1 alarm
3/03/95 3:47 T1 carrier level 2 alarm
3/03/95 4:43 T1 carrier performance within thresholds
3/03/95 15:01 Log Cleared
The Pause command can be used to display a full screen at a time by
entering D A P.
Clear Alarm Log
Clear all entries in the alarm log by typing in the Clear Alarm Log (C A L)
command set.
Display Status
The Display Status (D S) command set displays the current alarm
condition of the T1 link as well as the on-hook or off-hook status of each
of the 24 ports of the Lineside T1 card. Entering the Display Status (D S)
command set causes a screen similar to the following to appear:
LTI S/N Software Version 1.01 3/03/95 1:50
In alarm state: NO
T1 link at alarm level 0
Port 0 off hook, Port 1 on hook, Port 2 on hook, Port 3 on hook,
Port 4 on hook, Port 5 on hook, Port 6 off hook, Port 7 off hook,
Port 8 off hook, Port 9 on hook, Port 10 on hook, Port 11 on hook,
Port 12 off hook, Port 13 on hook, Port 14 on hook, Port 15 on hook,
Port 16 on hook, Port 17 on hook, Port 18 off hook, Port 19 off
hook,
Port 20 off hook, Port 21 on hook, Port 22 on hook, Port 23 on hook
Performance counters and reporting
The MMI monitors the performance of the T1 link according to several
performance criteria including errored, bursty, unavailable, loss of frame
and frame slip seconds. It registers the performance of these criteria by
reading their status every second and counting their results. These counts
are accumulated for an hour, and then they are reset to 0. Previous hour
count results are maintained for each hour for the previous 24 hours.
Performance counts are maintained for the following:
•
Errored seconds – one or more CRC-6 errors, or one or more out of
frame errors in a second.
•
Bursty seconds – more than one and less than 320 CRC-6 errors in a
second.
• Unavailable seconds – unavailable state starts with 10 consecutive
severely errored seconds and ends with 10 consecutive severely
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.