User's Manual
DEFINITY ECS Release 8.2 Maintenance for R8.2csi 
555-233-119  Issue 1
April 2000
Maintenance Objects 
3-190ATM-NTWK (ATM Network Error) 
3
ATM-NTWK (ATM Network Error)
In the ATM PNC configuration, the proprietary Center Stage Switch (CSS) is 
replaced by the ATM network. Since the CSS switch nodes are replaced by the 
ATM network in the ATM PNC configuration, the SNI boards are no longer 
needed. In place of SNI board, the ATM EI boards are connected to an ATM 
switch port over a fiber optic cable. The port on the ATM switch is under the 
control of ATM switch maintenance software. Refer to Figure 1-30
 in the ‘‘ATM 
Tips’’ section in Chapter 1 for a schematic of these connections.
An error against this MO indicates a problem in the ATM network (including the 
ATM switch) that is affecting the service quality. These error events are reported 
by the ATM network to the ATM EI board or are detected by the ATM EI board. 
Since these errors are 
not
 related to the ATM EI board, these errors are not 
reported against the ATM-EI Maintenance Object. However, some of these errors 
invoke alarms that require action by DEFINITY maintenance, while other log-only 
errors require no action.
Error Codes and Aux Data values
The Cause Code/Error Type information is shown inTable 3-81. These are the 
possible errors that can be logged against the ATM-NTWK MO. 
If the ATM-NTWK Maintenance Object receives more than 6 errors, the most 
recent errors are discarded.
MO Name 
(in Alarm 
Log)
Physical Name in 
Error Logs
1
1. AT indicates it is an ATM switch related address, UU is the connection number. The 
connection number can be converted into a board location by the command display atm 
pnc UU, which shows the translations for the board that reported the ATM network error. P 
indicates if the ATM-EI board (reporting the ATM network error) is the A side or the B side 
of the PNC. If the system is simplex, only A is valid.
Alarm Level Full Name of MO
ATM-NTWK ATUUP WARNING ATM Network Error










