Nortel Networks 8672ATME manual Web Management Port page items

152Chapter 7 Web Management

Table 56 Port page items (continued)

Field	Description
Framing Mode	Sets the framing for the port to:
	• sonet (Synchronous Optical Network), the standard format
		used in North America.
	• sdh (Synchronous Digital Hierarchy), the standard format used
		worldwide except in North America.
Clock Source	Sets the framing clock source for the port to:
	• loopTimed means clocking is derived from SONET line.
	• freeRunning means clocking is derived from on-board clock.
	Note that if you have two connected Passport 8672ATME
	Modules, you must set both to freeRunning or one to freeRunning
	and one to loopTimed; do not set both to loopTimed.
Line Speed	155 MBS or 622 MBS
Loop Back Mode	Sets the loopback mode to:
	•	off
	•	internal
	•	external
Mac Address	The MAC address assigned to this VLAN (used in IP and IPX
	routed circuits when there is no appropriate destination MAC to
	use).

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