ADC SWD4573I1 Manuale Utente

Configure PVCCs from the 

 window. From this window, you can 

optionally configure backup PVCCs for the primary PVCCs.

Backup PVCCs are redundant to 

primary PVCCs. A primary PVCC automatically switches to a backup PVCC if the primary 
PVCC were to fail. Do one of the following to open the 

 window:

In the

window, click 

then

.

In the 

 window, click 

then

.

The 

window displays.

PVCCs carry data between defined points within the Avidia chassis, such as between a channel 
card and a line card. PVCCs also carry data from subscriber modems to Avidia channel cards, 
and from Avidia line cards to other destinations in the ATM backbone network. 

PVCC configuration requires specifying a VPI and a VCI. VPI and VCI combinations must be 
unique only on the same user port, as the circuit is remapped to a different VPI and VCI on the 
network interface. This enables different subscribers to use the same VPI and VCI combinations 
without creating conflict in the network.