Filter
Top Products
DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Troubleshooting
6-11Troubleshooting ATM-CES
6
— DEFINITY Enterprise Communications Server Release 8
Maintenance for R8si
— DEFINITY Enterprise Communications Server Release 8
Maintenance for R8csi
Possible causes
1. The TN2305/TN2306 circuit pack is in a slot different from the DEFINITY
administration.
2. The TN2305/TN2306 was not completely inserted.
ATM signaling architecture
Troubleshooting interoperability between the DEFINITY ECS switch and the ATM
switch involves understanding the architecture of ATM signaling (Figure 6-1
). A
Lucent Cajun A500 is used to show this concept.
Figure 6-1. ATM signaling architecture
The following list shows the ATM-stack layers discussed in this section:
■ Physical layer
■ SONET/SDH layer
■ Call processing (CaPro) Layer
Physical layer
Is there an optical signal between the TN2305/TN2306 and the ATM switch?
1. Identify the OC-3/STM-1 ports on the ATM switch that have DEFINITY port
networks attached.
TN230X
DEFINITY
PPN
DEFINITY
EPN
Fiber Fiber
iodatrb LJK 052899
A500
ATM call control
Port boards
Switch
processor
Switch
fabric
Q.93B
Q.SAAL
ATM
SONET
Physical
Q.93B
Q.SAAL
ATM
SONET
Physical
CaPro
TN230X