Wireless Configuration for the SA520W
Configuring an Access Point
Cisco SA500 Series Security Appliances Administration Guide 95
3
Profile Advanced Configuration
STEP 1 Click Wireless > Profiles.
The Profiles window opens. The existing profiles appear in the List of Profiles
table.
STEP 2 Find the profile that you want to edit, and click the button in the Adv Config
column.
The Profile Advanced Configuration window opens.
STEP 3 As needed, change the following settings:
• Group Key Refresh Interval (Seconds): This specifies the timeout interval
after which group keys are generated (only used if profile is configured with
WPA or WPA2 security).
• PMKSA Life Time (Seconds): WPA2 security standard has an option called
PMKSA caching which means that the master keys derived from successful
RADIUS authentication are cached for some time to avoid long RADIUS
authentication every time a client connects. This timeout interval specifies
for how long this PMKSA is stored in the access point. A client reconnecting
within this interval (after successful RADIUS authentication) can skip the
RADIUS authentication.
• 802.1X Re-authentication Interval (Seconds): The timeout interval after
which the access point should re-authenticate with the RADIUS server.
STEP 4 Click Apply to save your settings.
Configuring the QoS Settings for a Wireless Profile
Quality of Service (QoS) is used to prioritize different types of traffic. It gives the
ability to provide different priority to different applications, users, or data flows, or
to guarantee a certain level of performance to a data flow. The default QoS
settings should be sufficient, but advanced users can map the DSCP/ToS values
to Classes of Service, as needed.
You can choose from four Class of Service queues to prioritize the data traffic over
the wireless link:
• Voice: Highest priority queue, minimum delay. Used typically to send time-
sensitive data such as Voice over IP (VoIP).
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