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app-notes:supervision [2015/04/08 20:05] hess |
app-notes:supervision [2015/04/20 09:43] (current) fachet [Introduction] |
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| The highest level of monitoring is the Ping Supervision which is individually configurable for each active (up) | The highest level of monitoring is the Ping Supervision which is individually configurable for each active (up) | ||
| - | link as well generic for any link based on the routing table. The user can define up to two host which are pinged | + | link as well generic for any WWAN link. The user can define up to two host which are pinged |
| every "ping interval" seconds. If there is no response of at least one of the two hosts within "ping timeout" | every "ping interval" seconds. If there is no response of at least one of the two hosts within "ping timeout" | ||
| milliseconds a retry is done using the "retry interval" time up to "max. number of trial fails". | milliseconds a retry is done using the "retry interval" time up to "max. number of trial fails". | ||
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| Emergency action "none" means that the link is defined as (inactive) down. | Emergency action "none" means that the link is defined as (inactive) down. | ||
| If you are using a VPN you should also enable the dead pear detection or keep alive mechanisms. | If you are using a VPN you should also enable the dead pear detection or keep alive mechanisms. | ||
| - | For the generic link "ANY" it's recommended to use the application host in your office. | + | "ANY" is a shortcut for all WAN interfaces. |
| - | This ping will ensure that even interruptions in the back-bone can be detected and a full point-to-point connection | + | |
| - | is guaranteed. | + | |
| The** WWAN Manager** who is responsible for the control of the mobile network modems checks every 15 seconds | The** WWAN Manager** who is responsible for the control of the mobile network modems checks every 15 seconds | ||
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| ===== Summary ===== | ===== Summary ===== | ||
| - | - Level 5: Application level Ping Supervision | ||
| - | * Is my application server reachable? | ||
| - Level 4: VPN dead peer detection/keep alive | - Level 4: VPN dead peer detection/keep alive | ||
| * Is VPN link over WAN link healthy? See also [[sdk:vpn-supervision|Supervision of a VPN Tunnel]]. | * Is VPN link over WAN link healthy? See also [[sdk:vpn-supervision|Supervision of a VPN Tunnel]]. | ||