Extreme Networks Altitude 4700 Series Product Reference Manual page 212

Configuring Access Point Security
5 Configure the Key Rotation Settings area as needed to broadcast encryption key changes to MUs and
define the broadcast interval.
Broadcast Key
Rotation
Update broadcast
keys every (300-
604800 seconds)
6 Configure the Key Settings area as needed to set an ASCII Passphrase and key values.
ASCII Passphrase
212
Select the Broadcast Key Rotation checkbox to enable or
disable broadcast key rotation. When enabled, the key
indices used for encrypting/decrypting broadcast traffic will
be alternatively rotated on every interval specified in the
Broadcast Key Rotation Interval. Enabling broadcast key
rotation enhances the broadcast traffic security on the
WLAN. This value is disabled by default.
Specify a time period in seconds to rotate the key index
used for the broadcast key. Set the interval to a shorter
duration like 3600 seconds for tighter broadcast traffic
security on the wireless LAN. Set the interval to a longer
duration like 86400 seconds for less broadcast traffic
security requirements. Default value is 86400 secs.
To use an ASCII passphrase (and not a hexadecimal
value), select the checkbox and enter an alphanumeric
string of 8 to 63 characters. The alphanumeric string
allows character spaces. The access point converts the
string to a numeric value. This passphrase saves the
administrator from entering the 256-bit key each time keys
are generated.
Altitude 4700 Series Access Point Product Reference Guide