3Com MSR 30, MSR 50 manual Fe1 frame-format, Fe1 loopback

234CHAPTER 14: E1-F INTERFACE CONFIGURATION COMMANDS

	undo fe1 detect-ais
View	E1-F interface view
Parameter	None
Description	Use the fe1 detect-aiscommand to enable AIS test on an interface.
	Use the undo fe1 detect-aiscommand to disable AIS test.
	By default, AIS test is performed.
Example	# Enable AIS test on E1-F 2/0 interface.
	<Sysname> system-view
	[Sysname] interface serial 2/0
	[Sysname-Serial2/0] fe1 detect-ais

fe1 frame-format

Syntax	fe1 frame-format { crc4 no-crc4 }
	undo fe1 frame-format
View	E1-F interface view
Parameter	crc4: Sets framing format to CRC4.
	no-crc4: Sets framing format to no-CRC4.
Description	Use the fe1 frame-formatcommand to configure the framing format of the
	E1-F interface.
	Use the undo fe1 frame-formatcommand to restore the default, that is,
	no-CRC4.
	An E1-F interface in framed mode supports both CRC4 and no-CRC4 framing
	formats, where CRC4 supports four-bit CRC on physical frames while no-CRC4
	does not.
Example	# Set the framing format of E1-F interface Serial 2/0 to CRC4.
	<Sysname> system-view
	[Sysname] interface serial 2/0
	[Sysname-Serial2/0] fe1 frame-format crc4
fe1 loopback

Syntax fe1 loopback { local payload remote }