OpenFlow: SDN Hybrid Deployment Strategies
This series of posts, has been focused on reviewing some practical OpenFlow SDN deployment strategies. Early SDN, will be hybrid networks and early niche applications to begin understanding how to integrate pockets of SDN, mitigate risks and most importantly understand the technology to properly scale solutions. If you try and put 5,000,000 access-lists into a kit that can only do 2,000 …
OpenFlow: Coarse vs. Fine Flows
OpenFlow: Coarse vs. Fine Flows – This series of posts, is to shed light on some illogicalities surrounding the SDN discussion. I will highlight what I propose, will achieve performance and scale when implementing flow based forwarding designs. Soon these debates, will no longer be conceptual or limited deployments in only the hyper-scale networks, as more of us begin real-life implementations. …
OpenFlow: Proactive vs Reactive Flows
As more people begin entering the Software Defined Networking conversation, there is still only one wire protocol that has a reasonably good chance at becoming the de-facto open SDN southbound messaging standard, OpenFlow. There is quite a bit of debate around whether or not OpenFlow can scale. Most claims that OpenFlow does not scale are probably grounded in misconception. That …
SDN OpenFlow Policy Abstractions
SDN OpenFlow Policy Abstractions : Abstraction layers are a fundamental principle in computer science. It is a core pillar in creating efficiencies through layered, modular scale. Proper abstraction layers are also where the networking train came off the tracks. Network operators program network devices using proprietary APIs one device at a time. In today’s networks, when we push policy to …
Plexxi Capacity Planning Done Right
I try and get a daily dose of at least a few minutes of a PacketPushers podcast to keep up with latest networking products and trends. In Show 126 Plexxi & Affinity Networking With Marten Terpstra Greg and Ethan meet with Marten Terpstra of Plexxi and dug into the new GA product offering from Plexxi. Plexxi defines “affinitized traffic” as traffic …
Floodlight OpenFlow Controller: Using the Static Flow Entry Pusher
Floodlight OpenFlow Controller: Using the Static Flow Entry Pusher: The first post in this tutorial can be found at Tutorial to Build a FloodLight SDN OpenFlow Controller . For those looking to do things with early SDN / OpenFlow controllers this post may be of some use to kickstart your efforts. I am posting a Java class below that Cory Fowler …
Programming the NSP: Vendors on SDN for SP Operators
ast week we looked at what the Network Service Provider Customers are looking for from vendors in the Network Virtualization Function (NFV). This week, let’s take a look at what the vendors were proposing in October at the SDN & OpenFlow World Congress. Some of the vendor and ONF white papers were posted recently which is nice to see. The …
Software Defined Network (SDN) -Looking Toward 2013 – Part 2
In the second part of the two parter I am looking at some of the softer sides of the networking futures and what I expect to see in the coming year. Click here for Part I. Today Google back-hauls their inter-data center traffic using its implementation of OpenFlow called G-Scale. While a fairly fixed set of flow patterns they have so far …
