ADC AVIDIA SWD4573I1 - Manual (Page 469)

Chapter 22: Configuring ATM Virtual Circuits
Avidia System Configuration and Management User Manual 443
C
ONFIGURING
PVCC
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Configure PVCCs from the PVCC Configuration Table 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
PVCC Configuration Table window:
• In the Site Map Navigation window, click ATM then PVCC Configuration Table .
• In the Tree Navigation window, click Configuration Management, ATM, then PVCC Configuration .
The PVCC Configuration Table 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.