R2511-HP MSR Router Series Interface Command Reference(V5)

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[Sysname-T1 2/0] idlecode 7e
itf (CT1/PRI interface)
Use itf to set the type and the number of interframe filling tags on the CT1/PRI interface. Two types of
interframe filling tag are available: 0x7E and 0xFF.
Use undo itf to restore the default.
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
Default command level
2: System level
Parameters
number number: Sets the number of interframe filling tags (an interframe filling tag is one byte in length).
The number argument is 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 five 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