Command Reference Guide

3Com Router 5000 Family and Router 6000 Family ft3 (CT3 Interface) ● 113
Command Reference
When using the ft3 command, note that:
■ The command is only available to the FT3-supported CT3 cards.
■ The command is available in T3 mode only. In CT3 mode, the command is
unavailable.
■ The subrates available in a DSU mode set using the ft3 dsu-mode command are
discrete and the subrate set using the
ft3 subrate command is an approximate
subrate. The T3 interface calculates an exact subrate (in bps) closest to the
approximate subrate within the subrate range in the specified DSU mode and then
set the hardware circuit to support the calculated exact subrate.
■ You may use the display interface serial interface-number:0
command to view the DSU mode, subrate setting, real interface rate, and interface
baudrate. The actual interface rate refers to the data bandwidth without
overheads and the interface baudrate is 44,736 kbps, the actual rate of T3 line
with overheads included.