SD-WAN isn't a challenge for the organization. But designing it, getting the right hardware, software, and configurations, working with multiple WAN vendors to ensure they understand our needs and goals--those are the challenges. For the organization it's transparent and seems to "just work". For the Network Admins, it's a baby that needs planning & care & monitoring.
Currently using a small deployment, less than a dozen sites. Monitoring the system is a bit awkward at first, looking to monitor the netflow/sflow next.
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