WM Access Domain Services Configuration
Summit WM20 User Guide, Software Release 4.2
142
Defining the Service Class for the WM-AD
Service class is determined by the combination of the following operations:
●
The class of treatment given to a packet. For example, queuing or per hop behavior (PHB).
●
The packet marking of the output packets (user traffic and/or transport).
The service class is equivalent to the 802.1D UP (user priority) with the exception that its scale is linear:
Configuring the Priority Override
Priority override allows you to define the desired priority level. Priority override can be used with any
combination, as shown in
Table 14
. You can user is allowed to configure the service class (L2 override)
and the DSCP values (L3 override values).
When
Priority Override
is enabled, the configured service class overrides the queue selection in the
downlink direction, the 802.1P UP for the VLAN tagged Ethernet packets, and the UP for the wireless
QoS packets (WMM or 802.11e) according to the mapping in
Table 13
. If
Priority Override
is enabled
and the WM-AD is not locally bridged, the configured DSCP value is used to tag the IP header of the
encapsulated packets. The AP does not override the DSCP in the IP header of the user packet.
Table 12: Service Classes
Service class name (number)
Priority level
Network Control (7)
7 (highest priority)
Premium (Voice) (6)
6
Platinum (video) (5)
5
Gold (4)
4
Silver (3)
3
Bronze (2)
2
Best Effort (1)
1
Background (0)
0 (lowest priority)
Table 13: Relationship Between Service Class and 802.1D UP
SC name
SC Value
802.1d UP
AC
Queue
Network Control
7
7
VO
VO or TVO
Premium (voice)
6
6
VO
VO or TVO
Platinum (video)
5
5
VI
VI
Gold
4
4
VI
VI
Silver
3
3
BE
BE
Bronze
2
0
BE
BE
Best Effort
1
2
BK
BK
Background
0
1
BK
BK
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