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Working with VSCs
Quality of service (QoS)
Upstream traffic marking
This table describes the marking applied to wireless traffic sent by connected client stations
to the service controller and then forwarded onto the wired network by the service
controller.
Mechanism
INCOMING
TRAFFIC
Wireless traffic
sent from client
stations to the AP
OUTGOING TRAFFIC
Traffic sent by the AP to the network
L2 marking
L3 marking
Upstream
DiffServ
tagging is
enabled
Upstream
DiffServ
tagging is
disabled
802.1p WMM 802.1p (requires an egress
VLAN to be defined for the
VSC)
DiffServ Pass-through
(Original layer 3
marking, if any, is
preserved.)
DiffServ DiffServ
TOS TOS
VSC-based WMM
Non-WMM
802.1p (requires an egress
VLAN to be defined for the
VSC)
IP QoS WMM
Downstream traffic marking
This table describes the marking applied to traffic received from the wired network by the
service controller and then sent to connected wireless client stations.
Mechanism
INCOMING
TRAFFIC
OUTGOING TRAFFIC
Wireless traffic sent from the service
controller to client stations
Traffic received from wired network
WMM Client Non-WMM Client
802.1p 802.1p WMM + HPQ (WMM
marking done
according to the rules
for the mechanism.)
HPQ (hardware
priority queueing)
DiffServ DiffServ
TOS TOS
VSC-based All traffic on the VSC
IP QoS All traffic that matches the ports/protocols
specified in the selected IP QoS profiles
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