Netgear WFS709TP-100NAS 사용자 가이드

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This chapter describes the following topics:

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The underlying mechanism for NETGEAR’s redundancy solutions is the Virtual Router 
Redundancy Protocol (VRRP). This mechanism can be used to create various redundancy 
solutions, including the following:

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Pairs of local WFS709TP ProSafe Smart Wireless Switches acting in an active-active mode or 
a hot-standby mode

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A master WFS709TP backing up a set of local WFS709TPs

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A pair of WFS709TPs acting as a redundant pair of master WFS709TPs in a hot-standby mode

VRRP is designed to eliminate a single point of failure by providing an election mechanism for 
WFS709TPs to elect a “master” WFS709TP. This master WFS709TP is the owner of the 
configured Virtual IP (VIP) address for the VRRP instance. When the master becomes 
unavailable, one of the backup WFS709TPs takes the place of the master and owns the Virtual IP 
address. All network elements (such as the APs and other WFS709TP) can be configured to access 
the Virtual IP, thereby providing a transparent redundant solution to the rest of the network.

In a WFS709TP ProSafe Smart Wireless Switch system, all access points (APs) are controlled by a 
WFS709TP switch. The APs tunnel all data to the WFS709TP, which processes the data, including 
encryption/decryption, bridging/forwarding, and so on.