Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

Junos ®
OS 12.3 Ethernet Interfaces Configuration Guide
• See Table 10 on page 136 and Table 11 on page 137 for information about configuring
inner and outer VLAN ID values and inner and outer TPID values required for VLAN
maps.
• Junos® OS Ethernet Interfaces
Rewriting the VLAN Tag on Tagged Frames
142
Related
Documentation
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” on page 53.
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” on page 147.
•
input-vlan-map on page 492
• output-vlan-map
• swap on page 556
• vlan-id on page 577
• tag-protocol-id on page 561
• unit on page 568
Copyright © 2012, Juniper Networks, Inc.