Example: Configuring Vlan Encapsulation On A Gigabit Ethernet Interface; Example: Configuring Vlan Encapsulation On An Aggregated Ethernet Interface; Configuring Extended Vlan Encapsulation - Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual

JUNOS 10.1 Network Interfaces Configuration Guide
You cannot configure a logical interface with VLAN CCC or VLAN VPLS encapsulation
unless you also configure the physical device with the same encapsulation or with
flexible Ethernet services encapsulation. In general, the logical interface must have
a VLAN ID of 512 or higher; if the VLAN ID is 511 or lower, it will be subject to the
normal destination filter lookups in addition to source address filtering. However if
you configure flexible Ethernet services encapsulation, this VLAN ID restriction is
removed.

Example: Configuring VLAN Encapsulation on a Gigabit Ethernet Interface

Configure VLAN CCC encapsulation on a Gigabit Ethernet interface:

Example: Configuring VLAN Encapsulation on an Aggregated Ethernet Interface

Configure VLAN CCC encapsulation on an aggregated Gigabit Ethernet interface:

Configuring Extended VLAN Encapsulation

Gigabit Ethernet, 4-port Fast Ethernet, MX Series router Gigabit Ethernet, Tri-Rate
Ethernet copper, 10-Gigabit Ethernet, and aggregated Ethernet interfaces with VLAN
tagging enabled can use extended VLAN CCC or VLAN VPLS, which allow 802.1Q
tagging. To configure the encapsulation on a physical interface, include the
encapsulation
specifying
For extended VLAN CCC and extended VLAN VPLS encapsulation, all VLAN IDs 1
and higher are valid. VLAN ID 0 is reserved for tagging the priority of frames.
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Configuring Extended VLAN Encapsulation
[edit logical-systems logical-system-name interfaces interface-name unit
logical-unit-number]
interfaces ge-2/1/0 {
vlan-tagging;
encapsulation vlan-ccc;
unit 0 {
encapsulation vlan-ccc;
vlan-id 600;
}
}
interfaces ae0 {
vlan-tagging;
encapsulation vlan-vpls;
unit 0 {
vlan-id 100;
}
}
statement at the
extended-vlan-ccc
[edit interfaces interface-name]
encapsulation (extended-vlan-ccc | extended-vlan-vpls);
[edit interfaces interface-name]
or :
extended-vlan-vpls
hierarchy level,