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Creating VLAN Tag Actions on an Ethernet Interface
This topic describes how to create VLAN tag actions on an E-Series edge or access link
interface. A tag-action allows you to add or change, or add and change VLAN tags on
packets that are received on a specified GE or 10GE interface. You can use a set of matching
criteria to select which packets to transform. Or, packets can be transformed unconditionally.
See the
Calix E-Series Engineering and Planning Guide
for an example of an E-Series Ethernet
interface tag action and an interface QoS policy being applied to an Ethernet interface.
While tag actions are typically described as being applied to packets received (ingress traffic)
on an Ethernet port interface, the reverse of the tag action is applied to packets transmitted
(egress direction) from the interface. For example, if an Add-Tag action is applied to an
interface, that same tag is stripped from packets leaving the interface.
The following VLAN tag actions can be assigned to an edge or access link interface within
the networking domain:
Add Tag
- The "add-tag" action adds an outer tag either on all packets on an interface,
or only on packets that match a specified VLAN ID or P-bit.
Add 2 Tags
- The "add-2-tag" action adds an outer tag and an inner tag with the
specified VLAN IDs on packets of untagged traffic.
Change Tag
- The "change-tag" action changes the outermost tag to the specified
VLAN ID on packets that match a specified VLAN ID.
Add and Change Tag
- The "add-and-ch" action changes the tag and then adds an
outer tag on packets that either match a specified VLAN ID or are priority-tagged
frames.
Note:
Tag-actions can only be applied to edge or access link interfaces. To create tag actions
for an ONT Ethernet or xDSL port subscriber service, you must use Service Tag Actions.
Configuration guidelines
Tag actions can only be assigned to edge or access link interfaces within the networking
domain and are defined with respect to ingress traffic.
When you create a tag-action, the interface automatically becomes a member of the
VLAN specified in the tag-action.
When you create an add-tag action, the P-bit of the incoming tag is automatically copied
into the P-bit of the added tag.
You can configure only one of the following attributes on a given VLAN on a given
interface:
VLAN membership
Tag-action (add, add-2-tags, change, or add-and-change)
Native VLAN
