Users Guide

611 | Access Points Dell Networking W-Series ArubaOS 6.4.x| User Guide
Prioritizing AP heartbeats
If the AP heartbeat or keep alive packets sent between the APs and controller are not received during the
defined interval, the APs may reboot, causing clients to re-associate. If a high-latency or low-speed link prevents
AP heartbeats from being sent and received correctly, you can assign a DSCP value to AP heartbeats to
prioritize the heartbeats.
To prioritize AP heartbeats using the WebUI:
1. Navigate to the Configuration > Wireless > AP Configuration page.
2. Select either the AP Group or AP Specific tab. Click Edit for the AP group or AP name.
3. Under Profiles, select AP, then AP system profile. The configuration settings are displayed in Profile
Details.
4. Under Profile Details:
a. In the Heartbeat DSCP field, enter a value greater than zero.
b. Click Apply.
To prioritize AP heartbeats using the command-line interface, access the CLI in config mode and issue the
following command:
ap system-profile <profile>
heartbeat-dscp <number>
Use the following commands:
show ap config {ap-group <name>|ap-name <name>|essid <name>}
show ap debug system-status {ap-name <name>|bssid <name>| ip-addr <ipaddr>}
On the local controller, you can also view maintenance mode status using the following commands:
show ap active {ap-name <name>|essid <name>|ip-addr <ipaddr>}
show ap database
show ap details {ap-name <name>|bssid <name>|ip-addr <ipaddr>}
AP Scanning Optimization
The scanning algorithm is enhanced to reduce the delay between visits to some channel types, by changing
their scan priority.
Channel Types and Priority
A channel can belong to one or more channel types, depending on regulatory information and the activity that
is detected on the channel. The frequency of visits to a channel depends on the priority of the channel type(s)
to which it belongs. The following table describes the priority of channel types.