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Cambium Employee
Posts: 45
Registered: ‎07-22-2015

Ping Watch dog & Ping Test

[ Edited ]

1. Ping Watch Dog

 

Minimum Software version : 15.1 

 

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

 

ping_watch.png

 

SNMP OID Details:

 
NameOIDTypeAccessMIB ModuleDescription
pingWdogEnable.1.3.6.1.4.1.161.19.3.3.2.265.0INTEGERread-writeWHISP-BOX-MIBV2-MIBenable(1) or disable(0) ping watchdog.
pingWdogIP.1.3.6.1.4.1.161.19.3.3.2.266.0IPADDRESSread-writeWHISP-BOX-MIBV2-MIBIPv4 address to ping in dotted decimal notation
pingWdogInterval.1.3.6.1.4.1.161.19.3.3.2.267.0INTEGERread-writeWHISP-BOX-MIBV2-MIBIntervals in seconds at which ping should be initiated
pingWdogRbtCnt.1.3.6.1.4.1.161.19.3.3.2.268.0INTEGERread-writeWHISP-BOX-MIBV2-MIBPing 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).

  • Following equation will give reboot interval.

        Reboot interval = Configured interval * (Reboot Count + 1)

 

LOGS:

 

If the Ping watchdog is enabled  and if the IP address configured is not reachable then then on reboot the following information will be available  in event logs

 

event log.png

 

2. PING Test 

 

 

Minimum Software version : 15.1 

 

With ping test ( Tools->PING Test) , now admin can ping any IPV4 address/Fully Qualified Domain Name.

Radio will internally issue 3 ping requests to the target IP/FQDN and display the results ( auto update of results will happen only if web page auto update is turned on )

 

 

ping.png