ARP Configuration for Ethernet TCC Encapsulations

All Ethernet TCC and Ethernet extended VLAN TCC encapsulations require that you also configure the Address Resolution Protocol (ARP). Since TCC simply removes one Layer 2 header and adds another, the default form of dynamic ARP is not supported. To retain the functionality of ARP for Ethernet networks, you must configure static ARP.

You configure the arp statement at the [edit interfaces interface-number unit unit-number family inet address ip-address] hierarchy level. Since you already specified remote and proxy addresses on the router performing TCC switching, you must apply the static ARP statement to the Ethernet-type interfaces of the routers that connect to the TCC-switched router. The arp statement must contain the IP address and the MAC address of the remotely connected neighbor by use of the unlike Layer 2 protocol on the far side of the TCC switching router.

Configure static ARP as follows:

interfaces {

    EthernetType-fpc/pic/port {

        unit 0 {

            family inet {

                address ip-address {

                    arp ip-address mac mac-address;

                }

            }

        }

    }

}

You can configure these statements at the following hierarchy levels:

• [edit logical-routers logical-router-name protocols interfaces]
• [edit protocols interfaces]