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Originally posted on Gigaom:
While much of the networking industry today is focused on improving speeds and feeds inside the data center, we need to recognize the importance of improving the networks that connect enterprise data centers to each other, and to the public cloud. If the industry can deliver an elastic network with programmable performance, then the walls between data centers could effectively disappear.
Trying to overlay cloud services on the same pipe being used for best-effort internet is going to disappoint users, and limit cloud service adoption. Specifically, we need to add speed and intelligence to these networks, and several factors are driving this requirement. For example:
Let’s imagine a company with a 200 Mbps data connection to the world, which needs to make a server platform change. To do so without shutting down the business in the process, IT staff would like to temporarily move the applications on this server to the public cloud. Let’s assume the total data to transfer would be about 10 terabytes to make this migration happen. However, transferring 10 TB of data over a typical 200 Mbps network connection would take nearly a week, assuming full bandwidth utilization, no re-transmissions and 80 percent utilization. Clearly this company is not going to be able to run this simple workload job over this network service.