HP MSR2000/3000/4000 Router Series Interface Command Reference

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Syntax
itf { number number | type { 7e | ff } }
undo itf { number | type }
Default
The interframe filling tag is 0x7E, and the number of interframe filling tags is 4.
Views
CT1/PRI interface view
Predefined user roles
network-admin
Parameters
number number: Sets the number of interframe filling tags (an interframe filling tag is one byte in length),
in the range of 0 to 14.
type { 7e | ff }: Sets the interframe filling tag to 0x7E by specifying the 7e keyword or to 0xFF by
specifying the ff keyword. On CT1/PRI interfaces, the default interframe filling tag is 0x7E.
Usage guidelines
Interframe filling tags are sent when no service data is sent on the timeslots bundled into logical channels
on a CT1/PRI interface.
Examples
# Set the interframe filling tag to 0xFF on CT1/PRI interface T1 2/0.
<Sysname> system-view
[Sysname] controller t1 2/0
[Sysname-T1 2/0] itf type ff
# Set the number of interframe filling tags to 5 on CT1/PRI interface T1 2/0.
<Sysname> system-view
[Sysname] controller t1 2/0
[Sysname-T1 2/0] itf number 5
loopback (CT1/PRI interface)
Use loopback to enable local, remote, or external payload loopback on the CT1/PRI interface.
Use undo loopback to restore the default.
Syntax
loopback { local | payload | remote }
undo loopback
Default
Loopback is disabled.
Views
CT1/PRI interface view
Predefined user roles
network-admin