Command Reference Guide

184 ● ft1 fdl 3Com Router 5000 Family and Router 6000 Family
Command Reference
ft1 fdl
Purpose Use the ft1 fdl command to set the behavior of the T1-F interface on the FDL in
ESF framing.
Use the undo ft1 fdl command to restore the default.
Syntax ft1 fdl { none | ansi | att }
undo ft1 fdl
Parameters none
Disables facilities data link (FDL).
ansi
Implements ANSI T1.403 FDL.
att
Implements AT&T TR 54016 FDL.
Default By default, FDL is disabled. You can however change the setting depending on the
setting at the far end.
Example Implement ANSI T1.403 FDL on interface the T1-F interface.
[Router-Serial0/0/0] ft1 fdl ansi
View This command can be used in the following views:
■ T1-F Interface view
Description FDL is an embedded 4 kbps overhead channel within the ESF format for transmitting
performance statistics or loopback code.