Command Reference Guide

238 ● itf (CT1/PRI Interface) 3Com Router 5000 Family and Router 6000 Family
Command Reference
itf (CT1/PRI Interface)
Purpose Use the itf command to set the type of and the the number of interframe filling
tags on the CT1/PRI interface. Two types of interframe filling tag are available: 0x7e
and 0xff.
Use the undo itf command to restore the default.
Syntax itf type { 7e | ff }
itf number number
undo itf { type | number }
Parameters type { 7e | ff }
Sets the type of interframe filling tag to 0x7e by
specifying the 7e argument or to 0xff by specifying the
ff keyword. On the CE1/PRI interface, the default type
of interframe filling tag is 0x7e.
number number
Sets the number of interframe filling tags. Valid values
are 0 to 14 bytes.
If no value is specified, the default is 4 bytes.
Example Set the type of interframe filling tag to 0xff on CT1/PRI interface 3/0/0.
[3Com -T1 3/0/0] itf type ff
On CE1/PRI interface 3/0/0 set the number of interframe filling tags to five.
[3Com -T1 3/0/0] itf number 5
View This command can be used in the following views:
■ CT1/PRI Interface view
Description Interframe filling tags are sent when no service data is sent on the timeslots bundled
into logical channels on the CT1/PRI interface.
On the CT1/PRI interface, the default type of interframe filling tag is 0x7e and the
default number of interframe filling tags is four.