HP MSR2000/3000/4000 Router Series Interface Command Reference

137
Parameters
number number: Sets the number of interframe filling tags (a 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 a T1-F interface, 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 T1-F interface.
Do not use the ft1 itf type ff command if both the ft1 code ami command and the ft1 data-coding
inverted command are configured so that the T1-F interface can operate properly.
Examples
# Set the interframe filling tag to 0xFF on T1-F interface Serial 2/0.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] ft1 itf type ff
# Set the number of interframe filling tags to 5 on T1-F interface Serial 2/0.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] ft1 itf number 5
Related commands
• ft1 code
• ft1 data-coding
ft1 loopback
Use ft1 loopback to set the T1-F interface in a loopback mode.
Use undo ft1 loopback to restore the default.
Syntax
ft1 loopback { local | payload | remote }
undo ft1 loopback
Default
Loopback is disabled.
Views
T1-F interface view
Predefined user roles
network-admin
Parameters
local: Sets the interface in internal loopback mode.
payload: Sets the interface in external payload loopback mode.
remote: Sets the interface in external loopback mode.