Users Guide

Dell PowerConnect W-Series ArubaOS 6.1 | User Guide WIP Advanced Features | 563
dwell-time-other-reg-domain-channel—For channels that belong to the all regulatory domain group (all-reg-
domain) with no wireless activity The default setting is 250 ms.
dwell-time-rare-channel—For channels in the rare group where no wireless activity is detected. The default value
is 100 ms.
Use the rf am-scan-profile command to set the dwell time and scan mode.
Channel Visiting
The Active and DOS channels are visited more frequently than the other channels. The order of preference in
selecting the next channel is:
1. DOS
2. Active
3. reg-domain
4. All-reg-domain
5. Rare
Once a channel is selected, the dwell time for that channel is determined based on the channel type. At the end
of the dwell time, a new channel is picked.
Age out of Devices
ArubaOS uses a combination of inactivity time and unseen time to age out a device. This ensures that the
channel is scanned a sufficient number of times before a device ages out. AM module maintains the following
parameters:
Discovered Time—The absolute time, is seconds, since the device was discovered.
Monitored Time—The number of times the channel was scanned since discovery.
Inactivity Time—The number of times the device was not “seen” when the channel is scanned.
Unseen Time—The absolute time, in seconds, since the device was last “seen.”
TotalWatch Administration
The AM module will initialize the channel list for each of the AP’s radios based on the scan mode setting for the
radio. For example, if scan mode is set to rare, then the channel list will contain all possible channels. You can
view these channels by using the show ap arm scan-times command.
Configuring Per Radio Settings
For each radio, you can configure the following settings (for detailed information on commands, refer to the
Command Line Reference Guide):
 the dwell times for the various channel types
 the channel list that should be used for scanning
These settings are configured via the command rf am-scan-profile, which can be attached to the two profiles,
dot11a-radio-profile and dot11g-radio-profile.
The am-scan-profile includes the following parameters that can be configured:
rf am-scan-profile <name>
scan-mode [reg-domain | all-reg-domain | rare]
The default setting is the all-reg-domain. This is consistent with the default functioning of the AM scanning
where the radio scans channels belonging to all regulatory domains.