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Stacking Two VLAN Tags

On Ethernet IQ and IQ2 interfaces, on MX-series router Gigabit Ethernet, Tri-Rate Ethernet copper, and 10-Gigabit Ethernet interfaces, and on aggregated Ethernet interfaces using Gigabit Ethernet IQ2 or 10-Gigabit Ethernet PICs on MX-series routing platforms, to push two VLAN tags in front of tagged frames entering or exiting the interface, include the push-push statement in the input VLAN map or the output VLAN map:




input-vlan-map {

push-push;
}

output-vlan-map {

push-push;
}

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]

See Table 50 and Table 51 for information about configuring inner and outer VLAN ID values and inner and outer TPID values required for VLAN maps.

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