Table of Contents
Advertisement
| Diagnostics
C
11
HAPTER
ATM Loopback
ATM L
OOPBACK
Figure 78: Ping Results
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)
– 128 –
Advertisement
Table of Contents
