EX-4300 Q-in-Q and l2tunneling

Hi,

We have been trying to get this setup working properly:

Customer(cisco) <-> EX4300 <-> MX960 <-> MX80 <-> Cusomer(cisco)

Between the MX routers there is a l2circuit.

EX config:

# show interfaces ge-0/0/4
description "customer interface";
flexible-vlan-tagging;
native-vlan-id 400;
encapsulation extended-vlan-bridge;
unit 400 {
    vlan-id-list 1-4094;
    input-vlan-map push;
    output-vlan-map pop;
}

# show interfaces xe-0/0/32
description "Uplink to MX960";
flexible-vlan-tagging;
encapsulation extended-vlan-bridge;
unit 100 {
    description "ge-0/0/0 QinQ";
    vlan-id 100;
}
unit 200 {
    description "ae0 QinQ";
    vlan-id 200;
}
unit 300 {
    description "ge-0/0/3 QinQ";
    vlan-id 300;
}
unit 400 {
    description "ge-0/0/4 QinQ";
    vlan-id 400;
}
unit 500 {
    description "ge-0/0/5 QinQ";
    vlan-id 500;
}
unit 4094 {
    description mgmt;
    vlan-id 4094;
}

# show vlans
MGMT {
    vlan-id 4094;
    interface xe-0/0/32.4094;
    l3-interface irb.4094;
}
default {
    vlan-id 1;
    l3-interface irb.0;
}
v100 {
    interface xe-0/0/32.100;
    interface ge-0/0/0.100;
}
v200 {
    interface xe-0/0/32.200;
    interface ae0.200;
}
v300 {
    interface xe-0/0/32.300;
    interface ge-0/0/3.300;
    interface ge-0/0/6.300;
}
v400 {
    interface xe-0/0/32.400;
    interface ge-0/0/4.400;
    switch-options {
        no-mac-learning;
    }
}
v500 {
    interface ge-0/0/5.500;
    interface xe-0/0/32.500;
}

# show protocols layer2-control mac-rewrite
interface ge-0/0/4 {
    protocol {
        vtp;
        cdp;
        ieee8023ah;
        lacp;
        lldp;
        mvrp;
        gvrp;
        vstp;
    }
}

MX960 config:

# show interfaces xe-0/0/5
flexible-vlan-tagging;
mtu 9192;
encapsulation flexible-ethernet-services;
unit 400 {
    description "to cust";
    encapsulation vlan-ccc;
    vlan-tags outer 400;
    family ccc {
        mtu 1526;
    }
}
# show protocols l2circuit
neighbor 10.10.1.1 {
 interface xe-0/0/5.400 {
 virtual-circuit-id 1;
 description test;
 encapsulation-type ethernet;
 }
}

MX80 config:

# show protocols l2circuit
neighbor 10.10.1.100 {
    interface ge-1/0/8.0 {
        virtual-circuit-id 1;
        description test;
        encapsulation-type ethernet;
    }
}

# show interfaces ge-1/0/8
description "customer interface";
mtu 1518;
encapsulation ethernet-ccc;
unit 0 {
    family ccc;
}

We recently replaced a MX80 with the MX960 and EX4300 to provide 1G ports. So the idea here was to run q-in-q on the trunk to the EX4300 and tunnel any l2 protocols that the customer is using since the switch itself is not as transparent as the old MX80 solution. The customer interface is configured as a trunk with CDP and LACP but none of the protocols are working for them. Any ideas? Thanks!