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Making SDN Work: The Need for Persistent Visibility

Rachel Pepple

August 27, 2013

SDN can we build it

In recent years, software-defined networking (SDN) has emerged as one of the hottest topics in enterprise and data center networking. While its proponents promise unprecedented performance, scalability, agility, and efficiency, the realities of implementing SDN are proving a daunting proposition for many IT teams. In an article published following Interop 2012—just as the hype around SDN was starting to gather steam—Mike Fratto, now an analyst at Current Analysis, cautioned SDN proponents:

IT shops are conservative. They don't want to monkey with part of the network running mission-critical services, for fear something will break. That's a huge hurdle.

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Making SDN Work with Wire Data

VMworldaccelerated SDN adoption

Leveraging the unparalleled SDN capabilities of Arista's EOS and real-time wire data analytics from the ExtraHop Context and Correlation Engine (CCE), the ExtraHop-Arista Persistent Monitoring Architecture enables organizations to dramatically simplify their network infrastructure while de-risking the transition to a software-defined datacenter. The joint solution delivers real-time, cross-tier, and cross-team persistent mobile visibility for dynamic environments.

The ExtraHop-Arista Persistent Monitoring Architecture for SDN

The ExtraHop-Arista Persistent Monitoring Architecture for SDN

DANZ functionality in the Arista EOS can be programmatically controlled to tap traffic from any source in seconds and ExtraHop transforms that data into meaningful real-time insight into performance, availability, and security, eliminating the need to create a separate tap aggregation layer to access wire data. Arista's VM Tracer links to vCenter to recognize vMotion and VXLAN events, and intelligently routes mirrored traffic to ExtraHop at up to a sustained 20Gbps. ExtraHop's CCE discovers and monitors performance across tiers for workloads associated with specific VM ports, delivering persistent visibility during provisioning, deprovisioning, VM migration, SDN topology change, and more.

Zeus Kerravala, founder and principal analyst with ZK Research, succinctly summed up the value of the joint ExtraHop-Arista solution in a recent Network World article:

One of the primary value propositions of a SDDC is that it simplifies data center operations. However, without the proper management tools, virtualization and "software defined" will actually make things more complicated and could increase operational expense. The integrated solution from ExtraHop and Arista gives IT visibility up and down the IT stack and cross-team visibility make the SDDC manageable. This is a great example of the flexibility and programmability of Arista's operating system as well as strong evidence for the analytic capabilities of ExtraHop. As the vision of the SDDC moves closer to fulfillment, we should expect to see more partnerships like this.

Download the datasheet for the ExtraHop-Arista Persistent Monitoring Architecture.

If you're at VMworld and are interested in a demo of the joint solution, please visit us at the Arista booth #1045, or email to arrange a meeting. ExtraHop will also be offering demos of its solution at booth #2417.

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