Cabletron Systems EMM-E6 Ethernet manual Led, Color Description Error Condition Recommended Action

CHAPTER 14: TROUBLESHOOTING

Table 14-1. LANVIEW LEDs

LED	Color	Description	Error Condition/
			Recommended Action
CPU	Multicolor	Flashing Green	If OFF, or Red, the board has a
		indicates that the	problem.
	Green	board is
	Red	operating	Press the reset switch on the
		properly.	EMM-E6 front panel to re-
			initialize the board. If the board
			does not re-initialize, it has
			probably failed. Call Cabletron
			Technical Support.
STBY	Yellow	Indicates	Network Management has
A,B,C,D		packets will not	placed the EMM-E6 in a
(Standby)		be forwarded as	Standby condition; a data loop
		the Spanning	condition exists.
		Tree Algorithm
		has put the	Check with your Network
		corresponding	Administrator to find out if the
		Bridge Port into	EMM-E6 was placed in
		a standby mode	Standby on purpose.
		due to detecting
		a data loop	If a Data loop does exist,
		condition.	reconfigure the network to
			remove the data loop.
RCV	Yellow	LED flashes to	If none of the receive LEDs is
A,B,C,D		indicate that a	flashing, the EMM-E6 is not
(Receive)		segment is	receiving frames on any of the
		receiving a	segments.
		frame.
			Check that each module is
			firmly installed in the MMAC.
			Ensure that all connected ports
			are enabled.

14-2 EMM-E6 User’s Guide