ADC AVIDIA SWD4573I1 User Manual page 91

ATM Switch to Avidia Line Card Segment Loopback
The ATM switch to Avidia line card segment loopback originates and terminates at the source
ATM switch (point C). The loopback target or destination is the Avidia line card (point B),
as shown in the figure below . At the ATM switch, the user must specify for this test the:
• VPI/VCI for an OAM F5 flow VCC or VPI only for an OAM F4 flow VPC
•
OAM Destination Location ID for the Avidia system
Avidia System
Point B - line card
ATM Node to Modem Segment or End-to-End Loopback
The ATM node (beyond the ATM switch) to modem segment or end-to-end loopback test
originates and terminates at an ATM node (point D). The loopback target or destination is
the modem (point A), as shown in the figure below. The loopback verifies a PVC from an
ATM node through to the modem. In this test that originates at the ATM node, the Avidia
system is a passive ATM device; that is, it simply passes the OAM F4 or F5 flow test cells,
generated by the ATM switch, transparently to modem.
Megabit Modem
M E G A B I T M O D E M
Point A
Avidia System Configuration and Management User Manual
ATM Link
OAM Segment Loopback
Avidia System
ADSL Loop
OAM Segment or End-to-End Loopback
Chapter 3: Applications and Configuration Overview
ATM Link
ATM
Switch
ATM
Switch
Point C
ATM node
Point D
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