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Which configuration on PE1 will allow CE1 to communicate with CE2 over a Layer 2 VPN, assuming PE2 has PPP TCC

— Exhibit –

— Exhibit —
Refer to the Exhibit.
Referring to the exhibit, you see the proper BGP, MPLS, and routing instance configuration for
PE1 and PE2.
Which configuration on PE1 will allow CE1 to communicate with CE2 over a Layer 2 VPN,
assuming PE2 has PPP TCC encapsulation on so-0/0/0.0?

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A.
[edit interfaces fe-0/2/2 unit 42]
family tcc {
proxy {
inet-address 192.168.1.2;
}
remote {
inet-address 192.168.1.1;
}
}

B.
[edit interfaces fe-0/2/2 unit 42]
family tcc {
remote {
inet-address 192.168.1.2;
}
}

C.
[edit interfaces fe-0/2/2 unit 42]
family tcc {
proxy {
inet-address 192.168.1.1;
}
}

D.
[edit interfaces fe-0/2/2 unit 42]
family tcc {
proxy {
inet-address 192.168.1.1;
}
remote {
inet-address 192.168.1.2;
}
}

23 Comments on “Which configuration on PE1 will allow CE1 to communicate with CE2 over a Layer 2 VPN, assuming PE2 has PPP TCC”

  2. Евгений says:

    Answer – A.

    Configuring Ethernet Encapsulation for Layer 2 Switching TCCs
    For Ethernet TCC circuits, configuring the encapsulation type for the entire physical device by specifying the value ethernet-tcc for the encapsulation statement.

    You must also specify static values for a remote address and a proxy address at the [edit interfaces interface-name unit unit-number family tcc] or [edit logical-systems logical-system-name interfaces interface-name unit unit-number family tcc] hierarchy level.

    The remote address is associated with the TCC switching router’s Ethernet neighbor; in the remote statement you must specify both the IP address and the media access control (MAC) address of the Ethernet neighbor. The proxy address is associated with the TCC router’s other neighbor connected by the unlike link; in the proxy statement you must specify the IP address of the non-Ethernet neighbor.

    You can configure Ethernet TCC encapsulation for the interfaces on 1-port Gigabit Ethernet, 2-port Gigabit Ethernet, 4-port Fast Ethernet, and 4-port Gigabit Ethernet PICs.

    encapsulation ethernet-tcc;
    unit logical-unit-number {
    family tcc {
    proxy {
    inet-address ip-address;
    }
    remote {
    inet-address ip-address;
    mac-address mac-address;
    }
    }
    }




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  8. mamak says:

    http://www.juniper.net/techpubs/en_US/junos14.1/topics/usage-guidelines/interfaces-configuring-vlan-tcc-encapsulation.html

    The proxy address is the IP address of the non-Ethernet TCC neighbor for which the TCC router is acting as a proxy. ==> CE2 here

    The remote address is the IP or MAC address of the remote router. The remote statement provides ARP capability from the TCC switching router to the Ethernet neighbor. The MAC address is the physical Layer 2 address of the Ethernet neighbor

    So A is correct




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