Configuring a Layer 2 Circuit on a VLAN-Bundled Logical Interface
This topic describes how to configure a Layer 2 circuit on a logical interface bound to a list of VLAN IDs.
Configuring a VLAN-Bundled Logical Interface to Support a Layer 2 VPN Routing Instance
To configure a VLAN-bundled logical interface,
specify the list of VLAN IDs by including the vlan-id-list statement or the vlan-tags statement:
interfaces {
ethernet-interface-name {
vlan-tagging; # Support single- or dual-tag logical interfaces
flexible-vlan-tagging; # Support mixed tagging
encapsulation (extended-vlan-ccc | flexible-ethernet-services);
unit logical-unit-number {
encapsulation vlan–ccc; # Required for single-tag
vlan-id-list [vlan-id vlan-id–vlan-id]; # For single-tag
vlan-tags outer tpid.vlan-id inner-list [vlan-id vlan-id–vlan-id]; # For dual-tag
}
. . .
}
}
You can include the statements at the following hierarchy levels:
[edit][edit logical-systems logical-system-name]
For a single-tag logical interface, include the encapsulation statement and specify vlan-ccc so that CCC circuit encapsulation
is used inside the Layer 2 circuit.
In the case of a dual-tag logical interface, the Junos
OS automatically uses the vlan-ccc encapsulation type.
See Also
Specifying the Interface to Handle Traffic for a CCC Connected to the Layer 2 Circuit
To configure the VLAN-bundled logical interface as the interface to handle traffic for a circuit connected to the Layer 2 circuit, include the following statements:
l2circuit {
neighbor address {
interface logical-interface-name {
virtual-circuit-id number;
no-control-word;
}
}
}
You can include the statements at the following hierarchy levels:
[edit protocols][edit logical-systems logical-system-name protocols]
To enable a Layer 2 circuit, include the l2circuit statement.
To configure the router as a neighbor for a Layer 2 circuit,
specify the neighbor address using the neighbor statement.
To specify the interface to handle traffic for a circuit connected
to the Layer 2 circuit, include the interface statement
and specify the VLAN-bundled logical interface.