DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Alarms, Errors, and Troubleshooting
5-51ATM Tips
5
2. If connections are being rejected, the Last Cause Code may give a clue
to why. The Cause Code (Table 5-7 below) indicating the error may b e on
the PPN port even though the EPN port is the one misbehaving , and vice
versa.
Enter show signaling cause
causecode
on the A500 console. Figure
5-30 shows the screen output for this c ommand.
Figure 5-30. A500:show signaling cause 31
3. At the DEFINITY SAT type display errors and press Enter .
Set the Error List to errors and Category to PNC on the input screen
(Figure 5-31) and press Enter to disp lay any Cause Codes (see Table 5-7
below) returned from the ATM network to a TN230X on the PPN (and to a
TN230X 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 .
Refer to ‘‘ATM-BCH (ATM B-Channel Trunk)’’ in Chapter 9 for detailed
information regarding Cause Cod es for this Maintenance Objec t.
Connect
Messages
Setup
Messages
Release
Messages
These counters should be non-zero if the A500 is
handling Q.93B protoc ol layer messages sent by the PPN
and EPN. They may not increase during troubleshooting
unless calls are being made, since the PPN initially sets
up control connec tions to the PPN and then sets up talk
path connections as need ed.
A500:show signaling cause 31
Cause 31: Normal, unspecified