Fortinet 102 FortiWeb 5.0 Patch 6 Administration Guide
Group ID Type a number that identifies the HA pair.
Both members of the HA pair must have the same group ID. If you
have more t han one H A pair on t he same ne twork, e ach HA pai r must ha ve
a different group ID.
Changing the group ID changes the cluster’s virtual MAC address.
The valid range is 0 to 63. The default value is 0.
Detection
Interval
Type the number of 100-millisecond intervals to set the pause between
each heartbeat packet that the one FortiWeb appliance sends to the other
FortiWeb appliance in the HA pair. This is also the amount of time that a
FortiWeb appliance waits before expecting to receive a heartbeat packet
from the other appliance.
This part of the configuration is synchronized between the active appliance
and standby appliance.
The valid range is 1 to 20 (that is, between 100 and 2,000 milliseconds).
Note: Although this setting is synchronized between the main and standby
appliances, you should initially configure both appliances with the same
Detection Interval to prevent inadvertent failover from occurring before the
initial synchronization.
Heartbeat
Lost
Threshold
Type the number of times one of HA appliances retries the heartbeat and
waits to receive HA heartbeat packets from the other HA appliance before
assuming that the other appliance has failed.
This part of the configuration is synchronized between the main appliance
and standby appliance.
Normally, you do not need to change this setting. Exceptions include:
• Increase the failure detection threshold if a failure is detected when
none has actually occurred. For example, during peak traffic times, if
the main appliance is very busy, it might not respond to heartbeat
packets in time, and the standby appliance may assume that the main
appliance has failed.
• Reduce the failure detection threshold or detection interval if
administrators and HTTP clients have to wait too long before being able
to connect through the main appliance, resulting in noticeable down
time.
The valid range is from 1 to 60.
Note: Although this setting is synchronized between the main and standby
appliances, you should initially configure both appliances with the same
Heartbeat Lost Threshold to prevent inadvertent failover from occurring
before the initial synchronization.
Setting name Description