IBM ATM OC-3c manual LEC is trying to join

Table D-4Last LEC Failure Reason (continued)

State	Possible Causes	Possible Solutions
Duplicated ATM	The LES has received a	Ensure that ATM
Address	request from a LEC	addresses are unique.
	which contains an ATM	Check the LES
A source ATM	address already	database for duplicate
address duplicates a	registered to another	addresses.
previously	LEC on the same ELAN.
registered ATM
address.	For example, if a LES is
	faulty, when a LEC
	disconnects from the
	LES, the LES might fail
	to register the change.
	When the LEC tries to
	rejoin the LES, the LES
	still has that LEC’s ATM
	address in its database,
	and thinks that two
	devices have the same
	ATM address.
	You may have
	accidentally entered
	the same ATM
	addresses twice.
(continued)

	Identifying the Problem		D-13
Table D-4Last LEC Failure Reason (continued)
State	Possible Causes	Possible Solutions
Insufficient	Too many connections	You may wish to
Resources	have been requested	consider extending or
	and the tables used by	restructuring your
There are	the LES may be full,	network.
insufficient	and the connection
resources to grant a	cannot be set up.
request.		Use a separate ATM
	The ATM Switch is busy
	and cannot provide	Switch for LECS
	LECS functionality.	functionality.
	There is a mismatch	Make the MAX VPI/VCI
	between the VPI/VCI	Bits compatible.
	range supported by
	adjacent ATM devices.
	Example:
	If Switch A supports
	VPI/VCI values 7:511
	and Switch B only
	supports values up to
	7:255, when Signalling
	tries to set up a
	connection using the
	VPI/VCI value 7:256,
	Switch B rejects the
	connection.
Access Denied	The LEC is trying to join	Check your LANE
	an ELAN that it is not	Services setup.
The LES has denied	allowed to access.
the LEC access to

the ELAN for security reasons.

(continued)