Rewriting a VLAN Tag and Adding a New Tag
On Ethernet IQ, IQ2 and IQ2-E interfaces, on MX
Series router Gigabit Ethernet, Tri-Rate Ethernet
copper, and 10-Gigabit Ethernet interfaces, on
aggregated Ethernet interfaces using Gigabit
Ethernet IQ2 and IQ2-E or 10-Gigabit Ethernet PICs
on MX Series routers, and on Gigabit Ethernet and
10-Gigabit Ethernet interfaces on EX Series
switches, to replace the outer VLAN tag of the
incoming frame with a user-specified VLAN tag
value, include the swap-push
statement in the input VLAN map or output VLAN
map:
swap-push
A user-specified outer VLAN tag is pushed in front. The outer tag becomes an inner tag in the final frame. The stacked and rewriting Gigabit-Ethernet VLAN Tags are also referred to as Q-in-Q tunneling.
You can include this statement at the following hierarchy levels:
-
[edit interfaces interface-name unit logical-unit-number input-vlan-map]
-
[edit interfaces interface-name unit logical-unit-number output-vlan-map]
-
[edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number input-vlan-map]
-
[edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number output-vlan-map]