# Configuring VPLS Network Interfaces

You must configure one of the following types of Ethernet or bridged Ethernet network interfaces to transmit packets between the PE router and each CE device to which the PE router is connected:

- Bridged Ethernet over ATM 1483 subinterfaces
- Fast Ethernet
- Gigabit Ethernet
- 10-Gigabit Ethernet
- VLAN and S-VLAN subinterfaces over bridged Ethernet, Fast Ethernet, Gigabit Ethernet, or 10-Gigabit Ethernet interfaces

The requirements and procedures for network interfaces are the same whether you employ BGP or LDP signaling for VPLS.

To configure a network interface for a VPLS instance:

1. From Global Configuration mode, select the interface that you want to assign to the VPLS instance.
   host1(config)#interface gigabitEthernet 3/0
2. From Interface Configuration mode or Subinterface Configuration mode, assign the interface to the specified VPLS instance.
   host1(config-if)#bridge-group customer1

   Issuing this command with no optional keywords configures the network interface as a subscriber (client) interface by default.

3. (Optional) Configure the interface as a trunk (server) interface. For more information about the differences between a subscriber (client) interface and a trunk (server) interface, see Subscriber Policies for VPLS Network Interfaces Overview .
   host1(config-if)#bridge-group customer1 subscriber-trunk
4. (Optional) Set the maximum number of MAC addresses that the network interface can learn.
   host1(config-if)#bridge-group customer1 learn 100
5. Enable SNMP link status processing only for the specified network interface in the VPLS instance.
   host1(config-if)#bridge-group customer1 snmp-trap link-status

#### Related Documentation

- Configuring VPLS with BGP Signaling on a PE Router
- Configuring VPLS with LDP Signaling on a PE Router
- bridge-group