User's Guide

Table Of Contents
Configuring a VNS
hwc_vnsconfiguration.fm
Configuring WLAN Services
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346 HiPath Wireless Controller, Access Points and Convergence Software V7.11, User Guide
Table 25 QoS mode combinations
The APs are capable of supporting 5 queues. The queues are implemented per
radio. For example, 5 queues per radio. The queues are:
Table 26 Queues
The HiPath Wireless Controller supports the definition of 8 levels of user priority
(UP). These priority levels are mapped at the AP to the best appropriate access
class. Of the 8 levels of user priority, 6 are considered low priority levels and 2 are
considered high priority levels.
WMM clients have the same 4 AC queues. WMM clients will classify the traffic
and use these queues when they are associated with a WMM-enabled AP. WMM
clients will behave like non-WMM clients—map all traffic to the Best Effort (BE)
queue—when not associated with WMM-enabled AP.
The prioritization of the traffic on the downstream (for example, from wired to
wireless) and on the upstream (for example, from wireless to wired) is dictated by
the configuration of the WLAN Service and the QoS tagging within the packets,
as set by the wireless devices and the host devices on the wired network.
Both Layer 3 tagging (DSCP) and Layer 2 (802.1d) tagging are supported, and
the mapping is conformant with the WMM specification. If both L2 and L3 priority
tags are available, then both are taken into account and the chosen AC is the
highest resulting from L2. If only one of the priority tags is present, it is used to
select the queue. If none is present, the default queue AC_BE is chosen.
Note: If the wireless packets to be transmitted must include the L2 priority (send
to a WMM client from a WMM-enabled AP), the outbound L2 priority is copied
from the inbound L2 priority if available, or it is inferred from the L3 priority using
the above table if the L2 inbound priority is missing.
Traffic that is
classified and
prioritized
To legacy client x x x x
From legacy client
To WMM client xxx xxx
From WMM client x x x x
To 802.11e client x x x x x x
From 802.11e client x x x x
Queue Name Purpose
AC_VO Voice
AC_VI Video
AC_BK Background
AC_BE Best Effort
AC_TVO Turbo Voice