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5.4.4 ATM Loopback
In order to isolate ATM interface problems, you can use ATM OAM loopback
cells to verify connectivity between VP/VC endpoints, as well as segment
endpoints within the VP/VC. This screen allows you to use ATM ping to test the
reachability of a segment endpoint or a connection endpoint.
Parameter
Description
Select PVC
Select the PVC channel you want to do the loop-back
diagnostic.
Flow Type
The ATM OAM flow type. The selection can be F5 Segment or
F5 End-to-End. ATM uses F4 and F5 cell flows:
• F4: used in VPs
• F5: used in VCs
Loopback
Location ID
The loop-back location ID field of the loop-back cell. The
default value is all 1s (ones) to indicate the endpoint of the
segment or connection.
Click “Go!” to save the setting to the configuration.