Many large organizations recognize the need for both router and
circuit redundancy at the core of their network, but very few organizations
have WAN redundancy at their small to medium sized sites. Even
though these smaller remote sites may also need access to critical applications,
the cost of providing redundancy via a second dedicated WAN
circuit to smaller remote sites is rarely cost-justifiable. VPN
backups over inexpensive broadband circuits may be the panacea that
Network Managers are looking for.
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