Defining Priority Level And Service Class For Wm-Ad Traffic - Extreme Networks Summit WM20 User Manual

To define a WM-AD with no authentication:
1 From the main menu, click WM-AD Configuration. The WM-AD Configuration screen is
displayed.
2 In the left pane WM Access Domains list, click the WM-AD you want to configure with no
authentication. The Topology tab is displayed.
3 From the Assignment by drop-down list, select SSID.
4 Configure the topology for this WM-AD, then click Save. For more information, see
Topology for a WM-AD for Captive Portal" on page
to the next tab.
5 Click the Auth & Acct tab.
6 Click Configure Captive Portal Settings. The Captive Portal Configurations screen is displayed.
7 Select No Captive Portal Support. You must save your changes before moving to the next tab.
8 Click the Filtering tab.
9 Define a default filter that will control specific network access for any wireless device users on this
WM-AD. For more information, see
These rules should be very restrictive and the final rule should be a Deny All rule. The
non-authenticated filter for a WM-AD with no authentication will not have a Captive Portal page for
login.
10 To save your changes, click Save.
Defining Priority Level and Service Class for WM-AD
Traffic
Voice over Internet Protocol (VoIP) using 802.11 wireless local area networks are enabling the integration
of internet telephony technology on wireless networks. Various issues including Quality-of-Service
(QoS), call control, network capacity, and network architecture are factors in VoIP over 802.11 WLANs.
Wireless voice data requires a constant transmission rate and must be delivered within a time limit. This
type of data is called isochronous data. This requirement for isochronous data is in contradiction to the
concepts in the 802.11 standard that allow for data packets to wait their turn, in order to avoid data
collisions. Regular traffic on a wireless network is an asynchronous process in which data streams are
broken up by random intervals.
To reconcile the needs of isochronous data, mechanisms are added to the network that give voice data
traffic or another traffic type priority over all other traffic, and allow for continuous transmission of
data.
In order to provide better network traffic flow, the Summit WM Controller, Access Points and Software
provides advanced Quality of Service (QoS) management. These management techniques include:
WMM (Wi-Fi Multimedia) – Enabled globally on the Wireless AP, the standard provides
●
multimedia enhancements that improve the user experience for audio, video, and voice applications.
WMM is part of the 802.11e standard for QoS.
IP ToS (Type of Service) or DSCP (Diffserv Codepoint) – The ToS/DSCP field in the IP header of a
●
frame is used to indicate the priority and Quality of Service for each frame. The IP TOS and/or
DSCP is maintained within CTP (CAPWAP Tunneling Protocol) by copying the user IP QoS
information to the CTP header—this is referred to as Adaptive QoS.
Summit WM20 User Guide, Software Release 4.2

Defining Priority Level and Service Class for WM-AD Traffic

99. You must save your changes before moving
"Configuring Filtering Rules for a WM-AD" on page
"Configuring
122.
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