peplink 310 - Page 69

USER MANUAL
Peplink Balance Series
Other Health Check Settings
Timeout
This setting specifies the timeout, in seconds, for ping/DNS lookup requests.Default
Timeout is set to
5 seconds
.
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 Check
Retries
This setting specifies the number of consecutive ping/DNS lookup timeouts after which
Peplink Balance 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 Peplink Balance treats a previously down WAN connection to
be up again.
By default, Recover Times is set to 3. For example, a WAN connection that is 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.
Automatic Public DNS Server Check on DNS Test Failure
In case the health check method is set to DNS Lookup and checks failed, the Balance will automatically perform
DNS lookups on some public DNS servers. If the testsare success, it means the WAN may not be down but rather
the target DNS server became malfunctioned. You will see the following warning message on the Main page.
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