ZyXEL Communications NXC-8160, Руководство пользователя

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Chapter 4 WLAN Settings
NXC-8160 User’s Guide
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The following table describes the labels in this screen.
4.5 The WMM Screen
Wi-Fi Multimedia (WMM) is a wireless interoperability standard designed to prioritize data
packets based on the type of information they carry:
video , voice , best effort , and
background . Typically, video and voice data require more bandwidth, so their data packets
will get higher priority. Best effort and background data packets generally receive lower
priority as they tend to be less bandwidth-intensive, at least in theory. Quality of Service (QoS)
prioritization is, by and large, an imperfect scheme for passing data over large networks and
the Internet; it relies on all intermediary servers using identical or near-identical prioritization
schemes, and this is not always the case.
For instance, your company may give voice data the highest priority if your internal telephone
network relies on Voice over Internet Protocol (VoIP) to implment its communications
scheme; however, those data packets may suddenly be sent to the back of the priority queue if
they hit, say, an ISP in Great Britain that wants to minimize its voice traffic in order to save
bandwidth for other kinds of data traffic, such as online gaming or peer-to-peer data exchange.
As such, QoS settings only ever become meaningful between the ISP gateway and your local
area network.
Click WLAN > ESSID Definition > WMM to open this screen. This is where you can
configure the NXC-8160’s WMM parameters.
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The WMM Parameters for any given ESSID can only be configured if the
Enable WMM checkbox is selected for that ESSID on the WLAN > ESSID
Definition > ESSID Settings screen. See Section 4.2 on page 43 for more.
Table 18 WLAN > ESSID Definition > RADIUS
LABEL DESCRIPTION
Server Name Enter a RADIUS server name.
Server Address Enter the RADIUS server’s IP address.
Server Password Enter the password the NXC-8160 should use to log into the RADIUS server.
Server Port Enter the RADIUS server’s port number.
Server Timeout Enter the duration that the NXC-8160 waits for a response before it times out
of the RADIUS server.
Remove Select this option to remove a RADIUS server from the list.
Save Click Save to save your customized settings.