SonicWALL E6500 Manuel d'utilisateur télécharger pdf (Page 37)

Page 36 Configuring a State Sync Pair in NAT/Route Mode

Adjusting High Availability Settings

On the High Availability > Settings page, there are four user-

configurable timers that can be adjusted to suit your network’s

needs:

• Heartbeat Interval (seconds) – This timer is the length of

time between status checks. By default this timer is set to 5

seconds; using a longer interval will result in the

SonicWALL taking more time to detect when/if failures

have occurred.

• Failover Trigger Level (missed heart beats) – This timer

is the number of heartbeats the SonicWALL will miss

before failing over. By default, this time is set to 5 missed

heart beats.This timer is linked to the Heartbeat Interval

timer – for example, if you set the Heartbeat Interval to 10

seconds, and the Failover Trigger Level timer to 5, it will be

50 seconds before the SonicWALL fails over.

• Probe Interval – This timer controls the path monitoring

speed. Path monitoring sends pings to specified IP

addresses to monitor that the network critical path is still

reachable. The default is 20 seconds, and the allowed

range is from 5 to 255 seconds.

• Election Delay Time – This timer can be used to specify

an amount of time the SonicWALL will wait to consider an

interface up and stable, and is useful when dealing with

switch ports that have a spanning-tree delay set.

Synchronizing Firmware

Checking the Synchronize Firmware Upload and Reboot

checkbox allows the Primary and Backup SonicWALL security

appliances in HA mode to have firmware uploaded on both

devices at once, in staggered sequence to ensure security is

always maintained. During the firmware upload and reboot, you

are notified via a message dialog box that the firmware is

loaded on the Backup SonicWALL security appliance, and then

the Primary SonicWALL security appliance. You initiate this

process by clicking on the Synchronize Firmware button.

NSA_E6500_GSG.book Page 36 Wednesday, June 17, 2009 7:16 PM

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 77 78

Pas de commentaire

SonicWALL E6500 Manuel d'utilisateur Page 37