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BreezeMAX Modular Base Station System Manual 205
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).
For transparent services, VLAN Classification Mode can be set to On to enable
downlink classification based on both the MAC Address and VLAN ID, to support
applications with multiple VLAN IDs per a single MAC address. All Services
assigned to the same SU must be configured with the same VLAN Classification
Mode (Either On or Off). If VLAN Classification Mode is On, only a single VLAN ID
can be defined for the Service. This means that the allowed combinations are:
Hybrid VLAN Mode is Off and the VLAN List includes a single VLAN ID.
Hybrid VLAN Mode is On and the VLAN List is empty.
For transparent services it is also possible to configure an Access VLAN to be used
with untagged packets received on the Ethernet port of the SU. This parameter is
applicable only for a transparent service with Hybrid Mode set to On, or a
transparent service with Hybrid Mode set to Off and an empty VLAN list.
A maximum of one Access VLAN can be defined per SU.
Hybrid VLAN Mode of operation enables classification of both tagged and
untagged packets or untagged packets only, according to the following rules:
Table 4-8: Hybrid VLAN Mode
Hybrid VLAN
Mode
VLAN List Forwarded Packets
Off 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)
On 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.