User's Manual

USER MANUAL

Peplink Balance Series

Other Health Check Settings

Timeout

This setting specifies the timeoutin secondsfor ping/DNS lookup requests.The 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 the

Peplink Balance is to treat the corresponding WAN connection as down. Default health

retries is set to 3.Using the default Health Retries setting of 3, the corresponding WAN

connection will be treated as down after three consecutive timeouts.

Recovery Retries

This setting specifies the number of consecutive successful ping/DNS lookup responses

that must be received before the Peplink Balance treats a previously down WAN connection

as up again. By default, Recover Retriesis set to 3.Using the default setting, a WAN

connection that is treated as down will be considered as up again upon receiving

threeconsecutive successful ping/DNS lookup responses.

Note

If a WAN connection goes down, all of the WAN connections not set with a Connection Type of Always-onwill also

be brought up until any one of higher priority WAN connections is up and found to be healthy. This design could

increase 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 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

When the health check method is set to DNS Lookup and checks fail, the Balance will automatically perform DNS

lookups on some public DNS servers. If the testsare successful, the WAN may not be down but rather the target

DNS server malfunctioned. You will see the following warning message on the main page: