3Com S330 manual Managing System Alarms, DS1/E1 UNI Module Alarms Meaning Troubleshooting Steps

		Managing System Alarms 173
Table 28 DS1/E1 UNI Module Alarms (continued)
Alarm	Meaning	Troubleshooting Steps

Group [n] Dup. IMA	The same group IMA ID has
ID	been received on links
	belonging to different IMA
	groups in the same card.

Correct link or group configuration.

Group [n] FE Abort	The far end rejects the
Symmetry	symmetry sent by the near end.
Group [n] FE	The far end reports it is not
Blocked	passing data.
ATM Forum (R-132)
Group [n] FE Config	The far end rejects the M value
Abort	used by the near end.

Check and correct near end symmetry. Only symmetric operation is supported in PathBuilder products.

Check and repair link facilities. Verify configuration.

Configure both ends to the same M value.

NOTE: This alarm should not occur if both ends are PathBuilder S310, S330, S600, or S700 products.

Group [n] FE Start	The far end is coming up
Up	(starting IMA).
ATM Forum (R-127)
Group [n] FE	The far end node is reporting
Insufficient Links	an insufficient number of links.
ATM Forum (R-131)
Group [n]	The near end finds not enough
Insufficient Links	available links.
ATM Forum (R-130)	This occurs when the near end
	has completed parameter
	negotiation with the far end,
	but is neither passing data nor
	blocked.

Information about far end state.

Check and repair link facilities. Verify configuration.

Check and correct any faulty IMA links. Check and correct IMA minimum links parameter.

Group [n] Lack of	The near end is idling because
Link	it does not have enough links
	in an IMA group. This occurs
	only after group parameters
	are negotiated. When this
	occurs, the “NE Insufficient
	Links” alarm is also reported.

Take the group down, and stop passing data in all links.

Group [n] Link	Summary information alarm to	Information only.
Down	indicate one or more alarms on
	this IMA group are active.
Group [n] Link Up	Summary informational alarm	Information only.
	to indicate all alarms on the
	IMA group are cleared.
Group [n] N<P	There are fewer configured	Continue passing data.
	links than IMA links required to
	make an IMA group active.

Group [n] No Link	The near end has lost all its
	links in an IMA group because
	these links have AFA, LOS, AIS,
	OOF, LCD, or missing ICP cells.
	This invalidates all the far end
	identity.
(continued)

If one or more links comes back, re-identify the link(s) and renegotiate parameters with the far end group.