Using Lecs; Using Rfc-1483 Pvcs - Cisco Catalyst 2900 XL Series Installation And Configuration Manual

For RFC-1483 LLC encapsulation, you must bind PVCs to the VLAN, and the VLAN ID
must match the VLAN used on the switch. Each ATM trunk supports a maximum of
64 active VLANs at one time. You can logically group users on Ethernet and ATM networks
by mapping VLANs on the Ethernet network to PVCs on the ATM network.
Note

Using LECs

You cannot create both LECs and RFC-1483 PVCs on an ATM module. If you want to
create a LEC after an RFC-1483 PVC has been configured, you must first remove all PVCs.
Use the CLI command no pvc vcd to remove all RFC-1483 PVCs. Then use the CLI
command lane client ethernet to create a LEC.

Using RFC-1483 PVCs

If you create an RFC-1483 PVC, you cannot create a LEC on the ATM module. If you want
to create an RFC-1483 PVC after a LEC is configured, you must first remove all existing
LECs. Use the CLI command no lane client ethernet to remove LECs. After you create a
PVC, you must bind it to the VLAN. For more information on binding the PVC, refer to
the following section, "Configuration Example for RFC-1483 PVC." A detailed example
with a Cisco router and an LS1010 ATM switch is discussed in the "Configuration
Examples" appendix.
Only the LLC encapsulation for a bridged Ethernet/802.3 packet is supported.
Configuring the ATM Module 3-7