Enabling Or Disabling Oam Alarm Notification; Configuring Loopback Detection And Testing - Nortel Versalar 15000 Troubleshooting Manual

Enabling or Disabling OAM Alarm Notification

OAM alarm notification tells the IP protocol that the PVC has received an OAM
alarm and that the service record is down. By default, OAM alarm notification is
disabled; that is, OAM alarms are ignored and no message is sent to the
upper-layer protocol. You can enable and disable OAM alarm notification at any
time.
To enable OAM alarm notification for a PVC, navigate to the PVC prompt (for
example,
pvc-service/boston; pvc-group/boston/group1; pvc/11/1/0/32
oam-notification enabled
For example, the following command enables OAM alarm notification on
PVC 11/1/0/32:
pvc/11/1/0/32#
pvc/11/1/0/32#
To disable OAM alarm notification for a PVC, navigate to the PVC prompt and
enter:
oam-notification disabled
For example, the following command disables OAM alarm notification on
PVC 11/1/0/32:
pvc/11/1/0/32#
pvc/11/1/0/32#

Configuring Loopback Detection and Testing

Note: You can perform loopback testing on a T3 interface, T1 channel, FT1
interface, or a logical line.
You can use fractional loopback to isolate problems with FT1 connections.
Fractional loopback is the transmission of ANSI-standard 127-octet loop code
through a fractional T1 (FT1) link to a device that returns the code to the sender.
The Versalar 15000 detects and generates FT1 loopback codes as specified in
ANSI T1.403 Annex B.
302768-C Rev 00
box; atm/11/1; pvc-service/boston; pvc/11/1/0/32
oam-notification enabled
oam-notification disabled
Monitoring and Troubleshooting
or
box; atm/11/1;
) and enter:
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