HP MSR2000/3000/4000 Router Series Interface Command Reference

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Default
FDL is disabled (none).
Views
CT1/PRI interface view
Predefined user roles
network-admin
Parameters
ansi: Adopts ANSI T1.403 for facilities data link (FDL).
att: Adopts AT&T TR 54016 for FDL.
both: Adopts both ANSI T1.403 and AT&T TR 54016 for FDL.
none: Disables FDL.
Usage guidelines
Facility Data Link (FDL) is an embedded 4 kbps overhead channel within the ESF format for transmitting
alarm information, performance statistics, or loopback code. FDL uses ANSI T1.403 and ATT TR 54016.
In application,
You can change the setting depending on the setting at the far end.
Examples
# Implement AT&T FDL on interface T1 2/0.
<Sysname> system-view
[Sysname] controller t1 2/0
[Sysname-T1 2/0] fdl att
frame-format (CT1/PRI interface)
Use frame-format to set the framing format on a CT1/PRI interface.
Use undo frame-format to restore the default.
Syntax
frame-format { esf | sf }
undo frame-format
Default
The framing format on a CT1/PRI interface is esf.
Views
CT1/PRI interface view
Predefined user roles
network-admin
Parameters
esf: Sets the framing format to ESF.
sf: Sets the framing format to super frame (SF).