BERT
Use the BERT (bit error rate testing) subtab to test the connectivity, error rate, and error count on the traffic running on the port of an electrical card. The BERT feature is currently supported only for the ONS 15454 DS1/E1-56 and DS3XM-12 cards.
In the DS1/E1-56 card, you can enable BERT mode only on a DS1 port for testing both the line side and the backplane side. In the DS3XM-12 card, you can enable BERT mode on a DS3 port for testing the line side and on a DS1 port for testing the backplane side.
Note
You can enable BERT mode only on one port of a card at any point in time.
The BERT subtab includes:
DS1
DS3 (DS3XM-12 only)
Test Mode

Copyright © 2002-2011, Cisco Systems, Inc. All rights reserved.