3Com 3031 Command Reference Manual page 181

E1-F Interface Configuration Commands 181
undo fe1 loopback [ local | remote ]
View
E1-F interface view
Parameter
local: Places the interface in local loopback.
remote: Places the interface in remote loopback.
Description
Using the fe1 loopback command, you can configure an E1-F interface in local or
remote loopback. Using the undo fe1 loopback command, you can disable the
local and remote loopback on the interface.
By default, the interfaces are not placed in local or remote loopback.
Local loopback and remote loopback are used for testing the state of interface or
cable itself. These functions should be disabled in normal cases. On an interface,
using this command, but with different arguments, can enable local loopback and
remote loopback, but these two functions cannot be enabled at the same time.
Example
Place the E1-F interface in local loopback.
[3com-Serial0/0/0] fe1 loopback local
fe1 timeslot-list Syntax
fe1 timeslot-list { all | range }
undo fe1 timeslot-list
View
E1-F interface view
Parameter
all: Binds all the time slots on an interface, the interface rate will become 31 X
64kbps (that is, 1984kbps) after binding.
range: Time slots participating in the binding operation, it is in the range of 1 to
31. When specifying time slots for binding, you can configure a single time slot by
using the form of "number", the time slots in a range by using the form of
"number1-number2", or multiple time slots by using the form of "number1,
number2-number3".