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WiLink-I Modular Base Station System Manual
155
To avoid conflicts, it is not allowed to define a VPL ID that is identical to any of the
VLAN IDs in the already assigned transparent Services (Services using a Service
Profile with VLAN Transparency Mode On).
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/Voice 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.
Available values are in the range of 0 to 4094 or null (empty string) for No VPL ID.
A value of 4095 is displayed for No VPL ID.
4.10.4.4.5
Priority Marking Mode
In some cases, the network operator may want to use the WiLink-I system for
marking QoS classes, in order to provide network-wide QoS and enable the
upstream network to handle the traffic accordingly. Within the WiLink-I system,
frames can be classified to QoS classes using Priority Classifiers, based on either
a DSCP header or 802,1p tag. This applies only in cases where an external
networking device marks the applicable fields. WiLink-I also enables marking data
transmitted to the backbone network with either DSCP or 802.1p values, where
the marking is done per Service Profile. This marking overrides marking
performed by external devices behind the SU. Typically, Priority Marking by the
NPU will be used in the following cases:
¢
The external networking equipment behind the SU does not use priority
marking.
¢
The service provider does not trust the priority marking defined by the user's
equipment.
¢
The service provider uses a priority marking type (DSCP or 802.1p) that differs
from the one used by the user's networking equipment.
The system supports three marking modes:
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