SDN Use Cases

Bad Decision1

We have a few problems in networking. The following document are some SDN use cases that have come up over the past recent months/years. New abstractions in networking should enable solutions we never thought possible due to the monolithic nature of networking gear today (Mainframe 1980). This is all coming from a person who thinks MPLS can squeeze orange juice out …

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SDN for Internet Providers Use Case

sdn service provider

This post has been updated here Thanks! -Brent

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Use case for MPLS in the Enterprise for PCI Compliance

Stop Cant Do It Sm

MPLS is today’s only form of scalable network virtualization we have for now. I personally think the promise of something called SDN will move into that space soon but until then, we need network virtualization. PCI is a joke. It is a racket by Visa and banks to spread fear without any brains behind the architecture. PCI DSS v2.0 soon …

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How I Learned to Hate the DCI


How I Learned to Hate the DCI: Layer 2 data center interconnects (DCI) is still alive and well. I blame VMware with vMotion and now every other Hypervisor vendor on the planet. Live workload migration is certainly vital to most operations. The further up the stack that happens the more flexibility you have with choosing more layers beneath you to reach for in …

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Why the NOS will decouple

Over the next couple of years some of us expect the networking industry to have some fairly significant changes. There are really two options: A distributed approach we have today or a controller based centralized model. We  have today just that, autonomous devices building adjacencies to one another, exchanging what it hopes are the best healthy paths to send next hop traffic …

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Network Processor Units (NPU) FTW

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February 2012 SDN Thoughts

I commented on a blog post earlier and I am recording my updated thoughts to review over the next few years to see how wrong I was. My initial business cases still have not changed much from 4 months ago. It has always been and will be about money. What will drive this is the ability to commoditize networking vendors and level …

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Top 10 Reasons I think SDN Openflow will gain momentum


Predicting the future is often as easy as looking at the past, no crystal ball required.

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The MPLS and transport roles merge

The Juniper PTX in 2011 was a pretty bold merge of the OTN and MPLS functionality into one box.  They are marketing it as the “Converged Supercore” http://www.juniper.net/as/en/dm/supercore/. As the debate of packet vs. circuit switched networks has clearly been won by the packet side of the house. Arguably the the increasing demands of service provider bandwidth for triple play …

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Death to the Firewall

The Firewall will die soon. Blackbox hardware just doesn’t make sense anymore. CPU is king when it comes to processing payload and that is commodity. SDN will put a nail in the custom hardware closed system soon enough. Until then, some musings on a project to collapse some functions into a router. Ironically, I can only collapse application processing into …

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Nexus 3000

I think Cisco re-branded an Arista switch with Nexus 3000. Low latency financial market oriented with merchant silicon. lolz

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