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The Branch Survivability feature monitors multiple network links between a branch office and Headquarters. It employs the preferred/low-cost link to provide automatic fail-over to operational links



The Branch Survivability module monitors the primary WAN connection

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when it detects a failure and if that failure persists for a predetermined amount of time, it makes the necessary changes in the routing table to route all IP packets through the 3G/4G network. Additionally, it sends a notification to the IPsec module when a fail-over event occurs, so that IPsec can create a secure tunnel if necessary. It also sends a notification to the Skype/Lync ASM module at the HQ site to modify the bandwidth control on the Skype/Lync server(s).

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