Configuring Flexible VLAN Tagging on PTX Series Packet Transport Routers
This topic describes how to configure flexible VLAN tagging on PTX Series Packet Transport Routers. In addition to VLAN tagging and stacked VLAN tagging, you can configure a port for flexible tagging. With flexible VLAN tagging, you can configure two logical interfaces on the same Ethernet port, one with single-tag framing and one with dual-tag framing.
To configure mixed tagging, include the flexible-vlan-tagging statement at the [edit interfaces et-fpc/pic/port ] hierarchy
level. You must also include the vlan-tags statement with inner and outer options or the vlan-id statement at the [edit interfaces et-fpc/pic/port unit logical-unit-number] hierarchy level:
[edit interfaces et-fpc/pic/port] flexible-vlan-tagging; unit logical-unit-number { vlan-id number; } unit logical-unit-number { vlan-tags inner tpid.vlan-id outer tpid.vlan-id; }
Note: For PTX EVO platforms, if you have configured an Interface
Device (IFD) with the family ethernet switching vlan members configuration, you
cannot use both VLAN tagging and flexible VLAN tagging CLI commands on the IFD at
the same time. This configuration is not supported, and a warning is issued if you
try to commit this configuration.