Siemens HiPath C10 User Manual page 181

Both Layer 3 tagging (DSCP) and Layer 2 (802.11d) 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 and L3. 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.
VNS type
Tunneled
Branch
Branch
Branch or Tunneled
Branch or Tunneled
Table 15 Traffic prioritization
The mapping of the tagged packets to the queues in the AP are as follows:
DSCP bin 802.1d
111xxx 7
110xxx 6
101xxx 5
100xxx 4
011xxx 3
010xxx 2
001xxx 1
000xxx 0
Table 16 Tagged packets mapping – Where xxx can be either 1 or 0.
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.
The following 6 options are available for configuring the QoS behavior of the VNS:
Best Effort – WMM is disabled and all traffic to and from the wireless client device will be
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handled as best effort traffic and will use the queue designated as best effort.
A31003-W1040-U101-1-7619, July 2006 DRAFT
HiPath Wireless Controller, Access Points and Convergence Software V4.0, C10/C100/C1000 User Guide
Packet type
Untagged
VLAN tagged
Untagged
WMM
non-WMM
WMM
AC_VO
AC_VO
AC_VI
AC_VI
AC_BE
AC_BK
AC_BK
AC_BE
Virtual Network configuration
Configuring Quality of Service (QoS)
L2 L3
No Yes
Yes Yes
No Yes
Yes Yes
No Yes
hwc_vnsconfiguration.fm
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