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Cisco Wireless LAN Controller Configuration Guide
OL-9141-03
Chapter 4 Configuring Controller SettingsWireless Device Access
Using the Wireless LAN Controller Network Module
• To access the CNM bootloader, Cisco recommends that you reset the CNM from the router. If you
reset the CNM from a CNM user interface the router might reset the CNM while you are using the
bootloader.
When you reset the CNM from a CNM interface you have 17 minutes to use the bootloader before
the router automatically resets the CNM. The CNM bootloader does not run the Router Blade
Configuration Protocol (RBCP), so the RBCP heartbeat running on the router times out after 17
minutes, triggering a reset of the CNM.
If you reset the CNM from the router, the router stops the RBCP heartbeat exchange and does not
restart it until the CNM boots up. To reset the CNM from the router, enter this command on the
router CLI:
service-module wlan-controller 1/0 reset
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