Ping Watch dog helps administrator to automatically reboot the AP/SM when ever there is a network issue .
This avoids the need of power on reset of radios. By default this feature is disabled, Feature can be enabled from Configuration->Ping Watch dog Tab or using SNMP OID's. Admin need to configure the device IP Address (Say for example default gateway IP Address) which is reachable from radio, ping interval and Ping Failure Count to Reboot in Ping Watchdog configuration
Configuration from web GUI
SNMP OID Details:
enable(1) or disable(0) ping watchdog.
IPv4 address to ping in dotted decimal notation
Intervals in seconds at which ping should be initiated
Ping Failures count at which reboot should be initiated
Ping Watchdog Explained
Say Configuration parameters are
1. IP Address To Ping : 10.110.110.100 2. Ping Interval : 300 sec 3. Ping Failure Count To Reboot : 3
What this means is every 300 sec radio will try to ping the IP address 10.110.110.100, IF the IP address is reachable radio will never reboot.
Ping Failure Count To Reboot is specified as 3, any 3 consecutive ping loss will trigger a reboot of radio at the 4th interval. i.e (300 Sec * 3 + 300 Sec).