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Organizations continue to battle problems related to delivering high-performing, continuous uptime and high-availability for applications such as VoIP, Outlook Web Access, VPN, Web Portals, and others, putting increased stress upon ISP links. An affordable approach to address these issues is the use of multi-homed connections to aggregate multiple low-cost ISP links. This approach avoids the high costs and complexity of using a Border Gateway Protocol (BGP) solution. Critical applications that had previously been hosted at home offices are now being accessed over the WAN, creating new concerns over reliable and secure access, along with how to assign appropriate and cost-effective bandwidth allocation. WAN connectivity failures and traffic congestion have become common problems that impact these business-critical applications.
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