Nera WILINK I System Manual page 143

Chapter 4 - Operation and Administration
Station to the backbone will be transferred transparently. The VPL ID parameter
is not applicable to Service Profiles with VLAN Transparency Mode On.
For tagged packets, the VPL ID will be their VLAN tag.
For untagged packets, the VPL ID will be None.
For packets received from the network, the forwarding decision will be according
to the packet's VPL ID. If the VPL ID is unknown (either None or not included in
the list of VPL IDs defined for any of the existing, non-transparent Service
Profiles), the system will assume this is a transparent VLAN packet (if at least one
transparent Service is defined) and transfer it with the original VLAN tag (or
untagged if there is no VLAN tag).
Hybrid VLAN Mode of operation enables classification of both tagged and
untagged packets or untagged packets only, according to the following rules:
Hybrid VLAN Mode
Off
On
The guidelines that should be followed when defining VLAN IDs and related
parameters are:
A specific VLAN ID behind a certain SU can be associated only with a single
Service of a certain Service Type. It is not possible to define two Services of the
same Service Type for the same SU and VLAN ID. However, the same SU and
VLAN ID can be associated with two Services of different Service Types,
excluding the combination of L2 Service and Voice Service.
For each Service Type, a maximum of one Service that enables forwarding of
untagged packets can be assigned to an SU. Forwarding of untagged packets
is supported when either Hybrid VLAN Mode is On, or Hybrid VLAN Mode is
Off and the VLAN List is empty. It is not possible to define for the same SU
two Services of the same Service Type that enable forwarding of untagged
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Table 4-6: Hybrid VLAN Mode
VLAN List Forwarded Packets
Exists Only packets tagged with a VLAN ID that exists in the
VLAN List. VLAN List can include up to 16 entries.
Empty All (both untagged and tagged with any VLAN ID)
Exists Untagged packets, and packets tagged with a VLAN ID
that exists in the VLAN List. VLAN List can include up to
15 entries.
Empty Only untagged frames.
WILINK I MODULAR BASE STATION SYSTEM MANUAL