Rewriting the VLAN Tag on Tagged Frames
To rewrite the VLAN tag on all tagged frames entering the interface
to a specified VLAN ID and TPID, include the swap, tag-protocol-id, and vlan-id statements in the input
VLAN map:
input-vlan-map { swap; vlan-id number; tag-protocol-id tpid; }
To rewrite the VLAN tag on all tagged frames exiting the interface
to a specified VLAN ID and TPID, include the swap and tag-protocol-id statements in the output VLAN map:
output-vlan-map { swap; vlan-id number; tag-protocol-id tpid; }
You can include these statements at the following hierarchy levels:
[edit interfaces interface-name unit logical-unit-number input-vlan-map][edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number input-vlan-map]
You cannot include both the swap statement and the vlan-id statement in the output VLAN map configuration. If
you include the swap statement in the configuration, the
VLAN ID in outgoing frames is rewritten to the VLAN ID bound
to the logical interface. For more information about binding a VLAN
ID to the logical interface, see 802.1Q
VLANs Overview.
The swap operation works on the outer tag only, whether or not
you include the stacked-vlan-tagging statement in the configuration.
For more information, see Examples: Stacking
and Rewriting Gigabit Ethernet IQ VLAN Tags.