High Availability; High Availability Basics; What High Availability Will Do For You - D-Link DFL-1600 User Manual

29.1

High Availability Basics

This section includes the following topics:

What High Availability will do for you

What High Availability will NOT do for you
Example High Availability setup
D-Link High Availability works by adding a back-up firewall to your
existing firewall. The back-up firewall has the same configuration as the
primary firewall. It will stay inactive, monitoring the primary firewall, until
it deems that the primary firewall is no longer functioning, at which point
it will go active and assume the active role in the cluster. When the other
firewall comes back up, it will assume a passive role, monitoring the now
active firewall.
Throughout this chapter, the phrases "master firewall" and "primary
firewall" are used interchangeably, as are the phrases "slave firewall" and
"back-up firewall".
29.1.1 What High Availability will do for you
D-Link High Availability will provide a redundant, state-synchronized
firewalling solution. This means that the state of the active firewall, i.e.
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High Availability

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