Re: EX - QinQ on trunk interface

Hi,

Please refer to below tech pubs for more details in Q in Q

Understanding Q-in-Q Tunneling on EX Series Switches

Configuring Q-in-Q Tunneling (CLI Procedure)

You can also refer to below KB which has another example  :[KB13544]

EX-series Switch Q-in-Q tunneling configuration

Another Sample Config :

user@switch> show configuration vlans qinqvlan
vlan-id 4001 {
dot1q-tunneling {
customer-vlans [ 1-100 201-300 ];
}
user@switch> show configuration interfaces
ge-0/0/11 {
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan members 4001;
}
}
}
ge-0/0/12 {
unit 0 {
family ethernet-switching {
port-mode access;
vlan members 4001;
}
}
}
ge-0/0/13 {
unit 0 {
family ethernet-switching {
port-mode access;
vlan members 4001;
}
}
}
ge-0/0/14 {
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan members 4001;
}
}
}
user@switch> show ethernet-switching-options
dot1q-tunneling {
ether-type 0x9100;
}

VLAN: qinqvlan, Created at: Thu Sep 18 07:17:53 2008
802.1Q Tag: 4001, Internal index: 18, Admin State: Enabled, Origin: Static
Dot1q Tunneling Status: Enabled
Customer VLAN ranges:
                     1-100
                     201-300
Protocol: Port Mode
Number of interfaces: Tagged 2 (Active = 0), Untagged  4 (Active = 0)
      ge-0/0/11.0, tagged, trunk
      ge-0/0/14.0, tagged, trunk
      ge-0/0/12.0, untagged, access
      ge-0/0/13.0, untagged, access