SonicWALL SuperMassive 9800, Руководство по началу работы

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46 SonicWall SuperMassive 9800 Getting Started Guide
MAC address. This simplifies the process of updating
network ARP tables and caches when a failover occurs.
Only the switches that the two appliances are directly
connected to needs to be notified. All outside devices
will continue to route to the single shared MAC address.
This option is not selected by default.
Click Apply to save any of the settings on this page.
For more information regarding the optional settings, see the
SonicOS Administration Guide .
Configuring HA Advanced Settings
These advanced optional settings are configured on the High
Availability > Advanced page. When finished, click Accept to
retain the settings.
• Adjust the Heartbeat Interval to control how often the
two units communicate. The default and recommended
minimum is 1000 milliseconds; the minimum is 1000
milliseconds and the maximum is 300000 milliseconds.
• The Failover Trigger Level sets the number of
heartbeats that can be missed before failing over.
SonicWall recommends leaving this field at its default
setting of 5 , and adjusting later if needed. The
minimum is 4, and the maximum is 99.
• Set the Probe Interval for the interval in seconds
between communication with upstream or
downstream systems. The recommended setting is an
interval of at least 20 seconds (the default). The
minimum is 5 seconds, and the maximum is 255
seconds. You set the Probe IP Address(es) on the High
Availability > Monitoring page.
• Set the Probe Count , which is the number of
consecutive probes before the appliance considers the
network path unreachable or broken. The default count
is 3 ; the minimum is 3, and the maximum is 10.
• The Election Delay Time is the number of seconds
allowed for internal processing between the two units
in the HA pair before one of them takes the primary
role. SonicWall recommends leaving this field at its
default setting of 3 seconds, then tuning later if
needed. The minimum is 3, and the maximum is 255.
• Enable the Active/Standby Failover only when ALL
aggregate links are down checkbox to treat the
aggregated link as down (causing a failover) only if all
member links are down. This option is not selected by
default.
• Select the Include Certificates/Keys checkbox to have
the appliances synchronize all certificates and keys. This
option is selected by default.