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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Troubleshooting
6-35Troubleshooting ATM-PNC
6
Q.93B (network) layer
Are connection requests being received by ATM switch call control?
NOTE:
If there is no connection between the TN2305/TN2306 circuit pack
and the ATM switch at the Q.93B protocol layer, then no report
displays.
1. Check the port of interest. If it is not configured for UNI signaling, then the
port was administered for no UNI signaling. Verify that signaling is UNI3.1
2. The connect, setup, and release message counters should be a nonzero
number if the ATM switch is handling Q.93B protocol layer messages sent
by the PPN and EPN. They may not increase during troubleshooting
unless calls are being made because the PPN initially sets up control
connections to the PPN and then sets up talk path connections as
needed.
3. Check to see if connections are being rejected. The error may be on the
PPN port even though the EPN port is the one misbehaving and vice
versa.
4. Type
display errors
and press
Enter.
5. Set the
Error List
field to
errors
and
Category
field to
PNC
on the
input screen (Screen 6-14
) and press Enter to display any cause codes
(see Table 6-11
) returned from the ATM network to a TN2305/TN2306
circuit pack on the PPN (and to a TN2305/TN2306 circuit pack on an
EPN). This is successful only if the links between the PPN and the EPN
remain up so that the message from the EPN is logged.
See the ATM-EI maintenance object in one of the following books:
■ DEFINITY Enterprise Communications Server Release 8
Maintenance for R8r