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Chapter 4 - Operation and Administration
The VLAN functionality of the SU differs from that of the NPU. The SU
operates in transparent mode: If no VLAN ID is defined (the VLAN ID
List is empty), frames with a VLAN ID tag will pass. In the NPU, if the
VPL ID is None (No VPL ID), frames with a VLAN ID tag arriving from the
downlink (the infrastructure side) will be discarded.
The guidelines that should be followed when defining various
parameters related to VLAN are:
Several Service Profiles may share the same VPL ID. However, the
following rules must be met:
Any number of L2 and/or VoIP Service Profiles may share the
same VPL ID, provided they all use the same Forwarding Rule.
Any number of PPPoE Service Profiles may share the same VPL
ID, provided they all use the same Forwarding Rule.
Any number of L2, VoIP and PPPoE Service Profiles may share
the same VPL ID, provided that all L2/VoIP Service Profiles use
the same Forwarding Rule A, and all PPPoE Service Profiles use
the same Forwarding Rule B, where A and B are different.
A specific VLAN ID behind a certain SU can be associated only with
a single Service Pipe of a certain Service Type. It is not possible to
define two Service Pipes of the same Service Type for the same SU
and VLAN ID. However, the same SU and VLAN ID can be associated
with two Service Pipes of different Service Types.
The maximum number of VLAN IDs (behind the same SU) that can
be associated with a single Service Pipe is 16. In the current version,
a VLAN switch with VLAN Binding capability must be used to
support more than one VLAN ID behind an SU. Otherwise, only a
single VLAN ID can be used behind an SU, and this VLAN ID must
equal the Multicast VLAN ID in the Forwarding Rule that is used in
the applicable Service Profile(s).
All Service Pipes associated with the same SU must use either VLAN
ID(s) or No VLAN. It is not possible to define for the same SU one or
more Service Pipes with VLAN ID(s) together with Service Profile(s)
that are not associated with any VLAN.
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BreezeMAX System Manual
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