Technical data

Automatic AP Upgrade
© 2012 Meru Networks, Inc. Configuring Access Points 223
Automatic AP Upgrade
The automatic AP upgrade features is enabled by default. It allows an AP’s firmware
to be automatically upgraded by the controller when the AP joins the WLAN. An AP
cannot provide service (and consequently be part of the WLAN) if its firmware is at
a different level than that of the controller.
When an AP initiates its discovery phase, the controller checks the firmware version
and initiates an upgrade if the version is not at the same level as that of the
controller. This feature simplifies the process of adding and maintaining a group of
APs on an existing WLAN.
When the automatic AP upgrade feature is enabled, you can check the upgrade status
of affected APs through syslog messages and SNMP traps that warn of an
AP/controller software version mismatch. An alarm is dispatched to an SNMP
manager if a mismatch exists. After the firmware is downloaded to the AP, the AP
boots, attempts discovery, is checked, and after upgrading, runs the new software
version. Once the match is confirmed, another set of syslog messages and SNMP traps
are sent notifying that the AP/controller software versions match. Alarms are then
cleared.
To disable this feature:
default# auto-ap-upgrade disable
default# show controller
Global Controller Parameters
Controller ID : 1
Description : 3dot4dot1
Controller
Host Name : DC9
Uptime : 03d:01h:17m:33s
Location : Qa scale testbed
near IT
room
Contact : Raju
Operational State : Enabled
Availability Status : Online
Alarm State : No Alarm
Automatic AP Upgrade : off
Virtual IP Address : 192.168.9.3
Virtual Netmask : 255.255.255.0
Default Gateway : 192.168.9.1
DHCP Server : 10.0.0.10
Statistics Polling Period (seconds)/0 disable Polling : 60
Note: The antenna gain value can never exceed the local power of the radios as set
in the Dot 11 physical configuration.