Smc-networks BARRICADE SMC7901WBRA2 B1 Manual de usuario Pagina 128

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C
HAPTER
11
| Diagnostics
ATM Loopback
– 128 –
Figure 78: Ping Results
ATM LOOPBACK
In order to isolate the 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.
ATM uses F4 and F5 cell flows as follows:
F4: used in VPs
F5: used in VCs
An ATM connection consists of a group of points. This OAM implementation
provides management for the following points:
Connection endpoint: the end of a VP/VC connection where the ATM cell
are terminated
Segment endpoint: the end of a connection segment
Figure 79: ATM Loopback
The following items are displayed on this page:
Select PVC — Selects the dedicated service link between the ADSL
Router and the service provider that you want to to a loopback test on.
(Default: 5/35)
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