3Com MSR 30, MSR 50 manual Loopback CT3 interface view, Mdl CT3 interface view

276CHAPTER 17: FUNDAMENTAL CT3 INTERFACE CONFIGURATION COMMANDS

Examples # Configure T3 2/0 interface to operate in the FT3 mode, setting the DSU mode to 1 and the subrate to 3000 kbps.

<Sysname> system-view [Sysname] controller t3 2/0 [Sysname-T3 2/0] using t3 [Sysname-T3 2/0] ft3 dsu-mode 1 [Sysname-T3 2/0] ft3 subrate 3000

loopback (CT3 interface view)

Syntax	loopback { local payload remote }
	undo loopback
View	CT3 interface view
Parameter	local: Enables internal loopback on the CT3 interface.
	payload: Enables external payload loopback on the CT3 interface.
	remote: Enables external loopback on the CT3 interface.
Description	Use the loopback command to configure the loopback mode for a CT3 interface.
	Use the undo loopback command to disable loopback.
	By default, loopback is disabled on CT3 interfaces.
	Loopback is intended for test use. Disable it otherwise.
	If a CT3 interface encapsulated with PPP is placed in a loopback, it is normal that
	the state of the link layer protocol is reported down.
Example	# Enable internal loopback on interface T3 2/0.
	<Sysname> system-view
	[Sysname] interface t3 2/0
	[Sysname-T3 2/0] loopback local

mdl (CT3 interface view)

Syntax mdl { detect data { eic string fic string gen-no string lic string pfi string port-no string unit string } generate { idle-signal path test-signal } }

undo mdl [detect data [ eic fic gen-no lic pfi port-no unit ] generate [idle-signal path test-signal ] ]

View CT3 interface view

Parameter detect: Enables periodical maintenance data link (MDL) message detection.