9-8CHAPTER 9: MONITORING THE ATM MODULE

Table 9-3Last LEC Failure Reason

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.

The ATM Switch is busy

Use a separate ATM

 

 

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

 

Table 9-3Last LEC Failure Reason

State

Possible Causes

Possible Solutions

 

 

 

Invalid

There is a problem with

Contact 3Com

Requestor ID

the LEC software.

Support.

The LEC Identifier

 

 

(LECID) is not zero,

 

 

or is not recognized

 

 

as this LEC’s LECID.

 

 

 

 

 

Invalid LAN

You may have

Check that the Local

Destination

configured an illegal

Administration

 

Local Administration

Address is valid.

You are trying to

Address.

 

register a multicast

 

Local Administration

address with the LES.

 

Address setup is

 

 

beyond the scope of

 

 

this guide.

 

 

 

Invalid ATM

The ATM address field

Contact your supplier

Address

may have been

or 3Com Technical

 

corrupted or not in the

Support.

Source or

correct format.

 

destination ATM

 

 

address is not in a

For example, it may be

 

recognized format.

in E.164 when OSI

 

 

N-SAP address coding

 

 

is required.

 

 

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)

 

 

 

 

 

No Configuration

The MAC address may

 

be invalid.

The LECS/LES does

 

not recognize the

 

LEC or the

The LEC may be

requested ELAN

requesting a resource

 

that is on an ELAN

 

which has a different

 

LAN type to the LEC.

Check that each MAC address on your network is unique.

Check the LAN type used.

You may have entered

Check that the ELAN

an invalid ELAN name.

name is correct, and

 

the ELAN has been set

 

up correctly.

 

 

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IBM ATM OC-3c manual State Possible Causes Possible Solutions Insufficient, Resources, Example, Requestor ID, Invalid LAN