ATM Configuration and Troubleshooting Guide

Troubleshooting

Troubleshooting LAN Emulation

Chapter 9242

D Check that the correct ELAN name is present. Check that the LES ATM

address displayed for the ELAN name is correct.

NOTE The ELAN name is case sensitive, so check that the ELAN name that is

conﬁgured in the LECS exactly matches the ELAN name conﬁgured in

SAM.

If no value is returned for the LES ATM address, check that the LECS is

OK, and that the LES ATM address is correctly deﬁned for the ELAN in

the LECS conﬁguration ﬁle.

Also check that any Access Control rules conﬁgured in the LECS do not

prevent the LEC from joining the ELAN. See “Checking ELAN Access

Control Rules Deﬁnitions on LECS” on page 244 for details.

E Check that the Control Direct VCC is open to the LES.

This means that communication is established between the LEC and the

LES. If the LES ATM address for the ELAN is correct, but the Control

Direct VCC is returned as -.-, there is a problem with establishing

contact with the LES—the LEC knows its LES ATM address but is

unable to open a connection to it.

Check the following:

• That the LES ATM address is correct.

• That the LES is functioning correctly.

• The connection between the LEC and LES.

• Your switch or edge device.

If the problem persists, make a trace and call HP.

F Check that the BUS ATM address and Multicast Forward VCC are OK.

If not, then the problem is with the BUS. If the BUS ATM address or

Multicast Forward VCC is not OK, there is a problem between the LEC

and the BUS. Check the following:

• That the BUS is correctly deﬁned in the LES.

• That the BUS is functioning correctly.

• The connection between the LEC and the BUS.