Nera WILINK I System Manual page 155

Chapter 4 - Operation and Administration
3 DSCP Marking Mode: All frames are marked with the configured DSCP
Marking Values.
If 802.1p classification is used at the SU, the frames will be transmitted to the
operator's network according to the following rules:
If DSCP classification is used at the SU, the original DSCP bits will be
replaced by the configured DSCP Marking Value.
NOTE
PPPoE frames can be marked only with 802.1p. DSCP marking for PPPoE services is not
supported.
In L2 Services, many protocols may be carried over Ethernet. As WILINK I bridges all these
protocols, there's no way to know what protocol type is encapsulated in Ethernet beforehand.
Consequently, if DSCP Marking is configured for L2, the WILINK I system uses DSCP marking
only for IP packets (e.g. Ethertype 0x0800). If 802.1p Marking is configured, it is used for all
frames.
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If VLAN Transparency Mode is On, all frames are marked with the original
VLAN ID and the 802.1p Marking Value
If 802.1p classification is used at the SU, the original 802.1p tags are
replaced by the configured 802.1p Marking Value.
If DSCP classification is used at the SU, an 802.1Q header is added, with
the configured VPL ID (if VLAN Transparency Mode is Off) or the original
VLAN ID (if VLAN Transparency Mode is On), and the 802.1p Marking
Value. The original DSCP bits are kept.
If VLAN Transparency Mode is Off, the frames will be forwarded with their
original 802.1p value and the configured VPL ID. If no VPL ID is
configured (VPL ID = Null), the 802.1p tags will not be forwarded.
If VLAN Transparency Mode is On, the frames will be forwarded without
any change (with the original 802.1p value and VLAN ID, if exists).
WILINK I MODULAR BASE STATION SYSTEM MANUAL