Foreword
When I first started working for Juniper Networks back in the late 1990s, the company’s market focus was service provider networks. That was an exciting place to be: Service provider technologies such as MPLS-TE were innovative and interesting, and they were evolving fast enough that having a deep curiosity and a short attention span were both useful qualities for a service provider network architect. Meanwhile, data centers of that era were mostly just servers sitting behind a few switches. Pretty boring.
How things have changed.
Modern online applications and cloud services require complex interactions between servers in a data center, which in turn require complex switching networks to handle time- or loss-sensitive east–west DC ...
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