Wireless Layer 2 Switching; Automatic Channel Selection - Extreme Networks Summit WM3000 Series Reference Manual

Overview
802.11e QoS
802.11e enables real-time audio and video streams to be assigned a higher priority over data traffic. The
controller supports the following 802.11e features:
Basic WMM
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WMM Linked to 802.1p Priorities
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WMM Linked to Differentiated Services Code Point (DSCP) Priorities
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Fully Configurable WMM
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Admission Control
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WMM-UPSD ((Unscheduled Power Save Delivery))
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Block ACKQBSS Beacon Element
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802.1p Support
802.1p is a standard for providing QoS in 802-based networks. 802.1p uses three bits to allow controllers
to re-order packets based on priority level.
Voice QoS
When controller resources are shared between a Voice over IP (VoIP) conversation and a file transfer,
bandwidth is normally exploited by the file transfer, possibly reducing the quality of the conversation.
With QoS, a VoIP conversation (a real-time session), receives priority, maintaining a high level of voice
quality. Voice QoS ensures:
Strict Priority
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Spectralink Prioritization
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VOIP Prioritization (IP ToS Field)
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Multicast Prioritization
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Data QoS
The controller supports the following data QoS techniques:
Egress Prioritization by WLAN
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Egress Prioritization by ACL
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DSCP to AC Mapping
The controller provides arbitrary mapping between Differentiated Services Code Point (DSCP) values and
WMM Access Categories. This mapping can be set manually.

Wireless Layer 2 Switching

The controller supports the following layer 2 wireless switching techniques:
WLAN to VLAN
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MU User to VLAN
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WLAN to generic routing encapsulation (GRE)
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Automatic Channel Selection

Automatic channel selection works sequentially as follows:
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Summit WM3000 Series Controller System Reference Guide