Table F-5. Ce-Vlan Preservation Options - ADTRAN Total Access 5000 Deployment Manual

Total Access 5000 Business Services Deployment Guide
Option
Enabled
Disabled
F-6

Table F-5. CE-VLAN Preservation Options

Definition
When this attribute is set to enabled, the following occurs.
• In the UNI‐to‐MEN direction, the frame is encapsulated and
transported by the EVC as is.
• In the MEN‐to‐UNI direction, the frame is unencapsulated
and egresses the UNI.
When this attribute is set to disabled, the following occurs.
• In the UNI‐to‐MEN direction, the CE‐VLAN tag is stripped if
present and the frame is then encapsulated and transported by
the EVC. Depending on the MEN‐Pri attribute of the
associated EVC map(s), the P‐bit value of the EVC is either set
explicitly or is inherited from the stripped CE‐VLAN tag.
• In the MEN‐to‐UNI direction, if the connected EVC maps are
matching on a single CE‐VLAN‐ID and not matching
untagged/priority tagged, then the frame is unencapsulated
and the CE‐VLAN‐ID of the EVC map is added. Depending on
the MEN‐Pri attribute of the connected EVC map(s), the P‐bit
value of the added CE‐VLAN tag is either set explicitly or is
inherited from the EVC s‐tag.
• If the connected EVC maps are matching on a single CE‐
VLAN‐ID and matching untagged/priority tagged, then the
frame is unencapsulated and the CE‐VLAN‐ID of the EVC
map is not added.
65K510DEP08-1A