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LAN Interface
Note: Vigor3300V supports four WAN interfaces, yet Vigor3300/Vigor3300B+ support
three WAN interfaces. That is, #WAN4 will be disabled for Vigor3300/Vigor3300B+.
4.2.5 High Availability
The High Availability (HA) feature refers to the awareness of component failure and the
availability of backup resources. The complexity of HA is determined by the availability
needs and the tolerance of system interruptions. Systems, provides nearly full-time
availability, typically have redundant hardware and software that makes the system available
despite failures.
The high availability of the V3300 Series is designed to avoid single points-of-failure. When
failures occur, the failover process moves processing performed by the failed component (the
"Master") to the backup component (the "Slave"). This process remains system-wide
resources, recovers partial of failed transactions, and restores the system to normal within a
matter of microseconds.
Take the following picture as an example. The left V3300 Series is regarded as Master
device, the right V3300 Series is regarded as Slave device. When Master V3300 Series is
broken down, the Slave device could replace the Master role to take over all jobs as soon as
possible. However, once the original Master is working again, the Slave would be changed to
original role to stand by.
In the Network group, click the High availability option.
Vigor3300V+ Series User's Guide
Select a proper LAN interface for WAN interface
(WAN1/WAN2/WAN3/WAN4).
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