How Converted Access Points Send Crash Information To The Switch; Uploading Memory Core Dumps From Converted Access Points; Displaying Mac Addresses For Converted Access Points; Configuring A Static Ip Address For A Lightweight Access Point - Cisco IOS XE Release 3SE Configuration Manual

Converting Autonomous Access Points to Lightweight Mode
The switch IP address that you obtain from the DHCP server should be a unicast IP address. Do not
Note
configure the switch IP address as a multicast address when configuring DHCP option 43.

How Converted Access Points Send Crash Information to the Switch

When a converted access point unexpectedly reboots, the access point stores a crash file on its local flash
memory at the time of the crash. After the unit reboots, it sends the reason for the reboot to the switch. If the
unit rebooted because of a crash, the switch pulls up the crash file using existing CAPWAP messages and
stores it in the switch flash memory. The crash information copy is removed from the access point flash
memory when the switch pulls it from the access point.

Uploading Memory Core Dumps from Converted Access Points

By default, access points converted to lightweight mode do not send memory core dumps to the switch. This
section provides instructions to upload access point core dumps using the switch GUI or CLI.

Displaying MAC Addresses for Converted Access Points

There are some differences in the way that controllers display the MAC addresses of converted access points
on information pages in the controller GUI:
• On the AP Summary page, the controller lists the Ethernet MAC addresses of converted access points.
• On the AP Detail page, the controller lists the BSS MAC addresses and Ethernet MAC addresses of
• On the Radio Summary page, the switch lists converted access points by the radio MAC address.

Configuring a Static IP Address for a Lightweight Access Point

If you want to specify an IP address for an access point rather than having one assigned automatically by a
DHCP server, you can use the controller GUI or CLI to configure a static IP address for the access point.
Static IP addresses are generally used only for deployments with a limited number of users.
An access point cannot discover the switch using domain name system (DNS) resolution if a static IP address
is configured for the access point, unless you specify a DNS server and the domain to which the access point
belongs. You can configure these parameters using either the switch CLI or the GUI.
Note If you configure an access point to use a static IP address that is not on the same subnet on which the
access point's previous DHCP address was, the access point falls back to a DHCP address after the access
point reboots. If the access point falls back to a DHCP address, enter the show ap config general Cisco_AP
CLI command to show that the access point is using a fallback IP address. However, the GUI shows both
the static IP address and the DHCP address, but it does not identify the DHCP address as a fallback address.
OL-28697-01
converted access points.
Lightweight Access Point Configuration Guide, Cisco IOS XE Release 3SE (Catalyst 3650 Switches)
How Converted Access Points Send Crash Information to the Switch
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