IBM OPTIONS ATM OC-3c, User Manual

Page: 107 / 140

Identifying the Problem D-13
Duplicated ATM
Address
A source ATM
address duplicates a
previously
registered ATM
address.
The LES has received a
request from a LEC
which contains an ATM
address already
registered to another
LEC on the same ELAN.
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.
Ensure that ATM
addresses are unique.
Check the LES
database for duplicate
addresses.
(continued)
Table D-4 Last LEC Failure Reason (continued)
State Possible Causes Possible Solutions
Insufficient
Resources
There are
insufficient
resources to grant a
request.
Too many connections
have been requested
and the tables used by
the LES may be full,
and the connection
cannot be set up.
The ATM Switch is busy
and cannot provide
LECS functionality.
There is a mismatch
between the VPI/VCI
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.
You may wish to
consider extending or
restructuring your
network.
Use a separate ATM
Switch for LECS
functionality.
Make the MAX VPI/VCI
Bits compatible.
Access Denied
The LES has denied
the LEC access to
the ELAN for
security reasons.
The LEC is trying to join
an ELAN that it is not
allowed to access. Check your LANE
Services setup.
(continued)
Table D-4 Last LEC Failure Reason (continued)
State Possible Causes Possible Solutions