mapping
Syntax (EX Series)
mapping (native (push | swap) | policy | tag (push | swap));
Syntax (QFX Series)
mapping (native (push | swap) | tag (push | swap)); mapping native inner-tag tag push; mapping native push inner-tag tag;
Hierarchy Level
[edit vlans vlan-name interface interface-name egress], [edit vlans vlan-name interface interface-name ingress], [edit vlans vlan-name interface interface-name]
Description
Map a specific C-VLAN to an S-VLAN. By default, the received incoming or outgoing tag is replaced with the new tag.
This statement is also required if you are configuring firewall filters to map traffic from an interface to a VLAN. If you are configuring firewall filters to map traffic from an interface to a VLAN, the mapping policy option must be configured using this command. The firewall filter also has to be configured using the vlan action for a match condition in the firewall filter stanza for firewall filters to map traffic from an interface for a VLAN.
Options
For EX Series:
native—Maps untagged and priority-tagged packets to an S-VLAN.
policy—Maps the interface to a firewall filter policy to an S-VLAN.
push—Retains the incoming tag and add an additional VLAN tag instead of replacing the original tag.
swap—Swaps the incoming VLAN tag with the VLAN ID tag of the S-VLAN. Use of this option is also referred to as VLAN ID translation.
tag—Retains the incoming 802.1Q tag on the interface.
For QFX Series:
inner-tag (QFabric systems only)—apply the
specified tag as an inner tag to packets that are received as untagged
on an access interface.
native—Map untagged and priority-tagged packets
to an S-VLAN.
push—Retain the incoming tag (as an inner tag)
and adds an additional VLAN tag. When you use this option, the TPID
of the outer tag is set as follows:
If Q-in-Q tunneling is not enabled in the VLAN, then the Ethertype for outer tag is set to 0x8100.
If Q-in-Q tunneling is enabled in the VLAN and a packet is egressing from a trunk port, then the Ethertype is set to 0x88a8 (or as configured by an
ether-typestatement).
swap—Replaces the incoming VLAN tag with the
VLAN ID tag of the S-VLAN. Using this option is also referred to as
VLAN ID translation. When you use this option on a trunk port for
which Q-in-Q tunneling is enabled, use the ether-type statement
to set the Ethertype.
tag—Original VLAN tag
that will be replaced (with swap) or that will become an
inner tag (with push).
Required Privilege Level
system—To view this statement in the configuration.system-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 9.6.
Option swap introduced in Junos OS Release 10.0 for EX Series switches.