3Com MSR 30, MSR 50 Loopback CE1/PRI interface view, Pri-set CE1/PRI interface view, Undo pri-set

210CHAPTER 12: FUNDAMENTAL CE1/PRI INTERFACE CONFIGURATION COMMANDS

loopback (CE1/PRI interface view)

Syntax	loopback { local payload remote }
	undo loopback
View	CE1/PRI interface view
Parameter	local: Sets the interface in local loopback mode.
	remote: Sets the interface in external loopback mode.
	payload: Sets the interface in external payload loopback mode.
Description	Use the loopback command to enable loopback and set the loopback mode.
	Use the undo loopback command to restore the default.
	By default, loopback is disabled.
	Loopback is intended for checking the condition of interfaces or cables. Disable it
	otherwise.
	You can bundle timeslots on the CE1/PRI interface to form a serial interface and
	encapsulate it with PPP. After you enable loopback on this serial interface, it is
	normal that the state of the link layer protocol is reported down.
Example	# Set interface E1 2/0 in internal loopback mode.
	<Sysname> system-view
	[Sysname] controller e1 2/0
	[Sysname-E1 2/0] loopback local

pri-set (CE1/PRI interface view)

Syntax	pri-set [ timeslot-list list ]
	undo pri-set
View	CE1/PRI interface view
Parameter	timeslot-listlist: Specifies timeslots to be bundled. The list argument is timeslot
	numbers, in the range of 1 to 31. You may specify a single timeslot by specifying a
	number, a range of timeslots by specifying a range in the form of
	number1-number2, or several discrete timeslots by specifying number1,
	number2-number3.
Description	Use the pri-setcommand to bundle timeslots on the CE1/PRI interface into a PRI
	set.