It can have a variety of features, including multiple network links being combined to one location. You might also find that there is a single pool for applications and services. Connectivity and bandwidth are often completely customizable to match your individual needs and requirements while policies can be specifically designed for network traffic.
You can require both regional and global deployments. If thats the case, then you are going to need to make sure that you address the issues with unreliable latencies as well as the congestion-based packet lost. Both are problems that become apparent over significantly large distances. Thats why you might want a global private network that will deliver a 4.1x faster response time for applications.
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