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PePLink Balance Series v4.0 User Manual
Page 46
Other Health Check Settings
Timeout
This setting specifies the timeout, in seconds, for ping/DNS lookup
requests. Default Timeout is set to 5 second.
Health Check
Interval
This setting specifies the time interval, in seconds, between ping or
DNS lookup requests. Default Health Check Interval is 5 seconds.
Health Retries
This setting specifies the number of consecutive ping/DNS lookup
timeouts after which PePLink is to treat the corresponding WAN
connection as “down”. Default Health Retries is set to 3.
For example, with the default Health Retries setting of 3, after
consecutive 3 timeouts, the corresponding WAN connection will be
treated as “down”.
Recovery Retries
This setting specifies the number of consecutive successful ping/DNS
lookup responses that must be received before the PePLink treats a
previously “down” WAN connection to be “up” again.
By default, Recover Times is set to 3.
For example, with the default Recover Retries setting of 3, a WAN
connection that was treated as “down” will be considered to be “up”
again upon receiving 3 consecutive successful ping/DNS lookup
responses.
Note
In case a WAN connection goes down, all of the WAN connections with non-Always-on
Connection Type will also be brought up until any one of higher priority WAN connections
is up and found to be healthy. This design could increase the overall network availability.
For example, if WAN1, WAN2 and WAN3 have the connection types of Always-on, Backup
Priority Group 1 and Backup Priority Group 2 respectively, when WAN1 goes down, WAN2
and WAN3 will also try to connect. If WAN3 is connected first, WAN2 will still be kept
connecting. If WAN2 is connected, WAN3 will disconnect or abort making connection.