How to make the business case for SD-WAN

How to make the business case for SD-WAN

Entegra Bank, a fast-growing financial institution based in the Blue Ridge Mountains of North Carolina, switched from MPLS links for its 22 branches to SD-WAN-based broadband and slashed its WAN connectivity bill by 50%, while increasing bandwidth an average of fivefold.

Loren Long, senior vice-president and CTO at the bank, says he had been eyeing both SD-WAN and broadband for some time, waiting for SD-WAN technology to mature and for rural broadband to improve in availability, dependability and security. After a positive experience with Silver Peak’s WAN optimization gear, “We felt confident to make that change,” he says.

In a typical SD-WAN scenario, branch office broadband would connect directly to the public internet. But since this a bank with heightened security and compliance responsibilities, traffic from the branches is backhauled over an encrypted VPN to internal gateways, where a third-party security services provider monitors all traffic and enforces security policies.

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