Ap Detection; Ap Scan Configuration Commands - Extreme Networks Summit 300-48 Software User's Manual

• Rogue access point detection, including alarm conditions
• RF overlap levels to determine network efficiency
• Notifications of newly discovered APs
• Client detection upon interaction with the Altitude 300, including client state changes, and error
messages

AP Detection

AP detection can be configured to use either of two methods: passive scan or active scan. During a
passive scan, the Altitude 300 simply listens for beacons and other broadcast traffic and uses the
collected information to create a database of stations it recognizes. In active scan mode, the Altitude 300
sends a probe request to elicit responses from other APs within its area.
The Altitude 300 support both active and passive scans on the current operating channel. During scans
operating on the current channel, the Altitude 300 continues to carry user traffic. During an
"off-channel" scan, the Altitude 300 is not be available for user traffic. The effect of an off-channel scan
is to disable the radio for a user-defined period of time, during which the Altitude 300 will scan other
channels. All associated clients will lose connections and need to reassociate. Once the scan is complete,
the radio will be returned to its previous state. You can set the scan to occur on all channels, or on a
specific subset of channels at specified scheduled times.
Table 24 lists the configuration commands for AP scans. The results of AP detection are stored in the
Scan Results table (See Table 25).
Table 24: AP Scan Configuration Commands
Command
enable wireless port <portlist> interface [1|2]
ap-scan
disable wireless port <portlist> interface [1|2]
ap-scan
enable wireless port <portlist> interface [1|2]
ap-scan off-channel (at|every) <time>
disable wireless port <portlist> interface [1|2]
ap-scan off-channel (at|every) <time>
configure wireless port <portlist> interface [1|2]
ap-scan off-channel <add|del>
Summit 300-48 Switch Software User Guide
Description
Use this command to start the wireless port scan on the
indicated port and interface for the Altitude 300.
Use this command to stop the wireless port scan on the
indicated port and interface for the Altitude 300. When the
scan feature is disabled, entries slowly age out of the scan
results table until it is empty. If the scan is restarted, the
table values from the previous scan will be kept.
Use this command to start the off-channel AP scan on the
indicated wireless interfaces at the configured time:
• at - Start the scan at the configured time (once only)
• every - Start the scan every day at the configured time
(recurring)
Use this command to stop the AP scan on the indicated
interface.
Use this command to add or remove specific channels for
the off-channel AP scan. The following special tokens can
be used to further define the scan parameters:
• current-channel - specifies that the scan is to be
performed on the current channel only.
• all-channel - specifies that the scan is to be
performed on all channels in a given country code.
• every-channel - specifies that the scan is to be
performed on all channels regardless of the country
code. No beacons will be sent on out-of-country-code
channels.
Configuring RF Monitoring
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