
Configuring ATM and MPLS Services
6-22
117374-C Rev 00
Changing PVC OAM Parameters
The Operations and Management (OAM) feature provides a mechanism by which
ATM devices can receive prompt notification of PVC failures. OAM uses special
loopback cells or alarms to detect PVC failures. These mechanisms decrease the
amount of time between an actual PVC failure and when the router is aware of this
failure. When using OAM loopback cells, the time can decrease to only a few
seconds; when using OAM alarms, the detection is almost instantaneous.
To change the PVC OAM parameters, complete the following tasks:
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
click on the ATM interface (
ATM1
) that you
want to modify.
The Select Connection Type window
opens.
2. Click on
ATM
. The Edit ATM Connector window opens.
3. Click on
Service Attributes
. The ATM Service Records List window
opens.
4. Click on the PVC service record that you
want to modify.
5. Click on
PVC
. The ATM Virtual Channel Link window
opens.
6. Click on the PVC that you want to modify.
7. Set one or more of the following
parameters:
• OAM Loopback Enable
• OAM Loopback Cell Interval
• OAM Threshold 1
• OAM Threshold 2
• OAM Alarm Enable
See the parameter descriptions beginning
on page A-76.
8. Click on
Apply
.
9. Click on
Done
. You return to the ATM Service Records
List window.
10. Click on
Done
. You return to the Edit ATM Connector
window.
(continued)
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