Keep alive interval of a wan interface XGS116

Question

Hello, I need your kind assistance regarding a new Sophos XGS116 that I am using. Can you please tell me how to set the keep alive interval of a wan interface? It is set to ping at 8.8.8.8 but I do not know the interval of pings, how often they are. 
 
 Thank you in advance,

LuCar Toni · Accepted Answer

So: 
 Interval between sec is the time, the appliance sends a health check: every 2 seconds. 
 If after 4 secs of each check, it considers this as a dead check. 
 Gateway will be considered dead after 2 checks failed, 8 secs in your scenario. and 8 sec after it works again. 
 And the SLA (when SD-WAN will use this gateway again) is after 30 samples, which means 30 checks have to work = 30x 2 = 60 sec.

Erick Jan · Answer

Hi Eva, 
 Thank you for reaching out to Sophos Community. 
 To set the time after which Sophos Firewall determines that an unresponsive link is down, enter a value in the Gateway failover timeout field and click Apply. 
 Kindly refer to the following for reference: 
 
 WAN Link Manager

Keep alive interval of a wan interface XGS116

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