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IP Networks
are not by nature predictable in the way they deliver traffic, with routing automatically changing
the paths of application traffic as network elements change state over time.
The variability
of application or service traffic delivery in large, complex IP networks can undermine engineering
assumptions, resulting in misconfigurations, slowed or blocked troubleshooting, and suboptimal
design and planning.
This session
will introduce route analytics and a new technology that Internet researcher Van Jacobson has
coined “Route-Flow Fusion”—a combination of NetFlow and real-time route analytics data that
provides visibility, analysis and modeling of the volume, composition and dynamic movement of
traffic across an entire network, with very light NetFlow export overhead. The session will
include an overview of route analytics, explain how flow data exported from a few key routers
can be mapped network-wide over their actual routes to provide an always-accurate routing and
traffic map, and then some example use cases such as “rewinding” the state of routing and traffic
to a past point in time for accurate troubleshooting, simulating what will happen to network
traffic when moving servers between data centers, and a demo of actual customer routing and
traffic network event streams as recorded by route analytics and route-flow fusion technology.
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