Networking Field Day #5 – A Community Event
Networking Field Day is upon us again. The days of March 6-8 some of the best in the business are going to be together again to have participating vendors pitch their product strategies to the NFD delegates and more importantly, to everyone else watching the live stream. I was invited to attend Network Field #5 and I humbly accepted. Network …
Putting Together Provider Bridging, Provider Backbone Bridging, S-Tags and C-Tags
Putting Together Provider Bridging, Provider Backbone Bridging, S-Tags and C-Tags: Understanding carrier bridging techniques is important, not just for provider operators, but also for engineers on the customer edge. When turning up or troubleshooting a circuit, carrier operators will ramble off C-tag and S-tag when many in the enterprise, are used to hearing Vlan ID in single tenancy deployments. More …
Hybrid OpenFlow Using The Normal Action
Hybrid OpenFlow Using The Normal Action: When a new technology is introduced in networking, it is not uncommon for most to transition that new technology into their network for test/dev or production by starting with small chunks at a time. Hybrid OpenFlow deployments will used by many of us as a place to start with SDN with fairly low risk …
More Vendors Define Their SDN Strategy
It was a busy week in SDN. Some pretty significant revelations gave us good directional indications for SDN in 2013. Most significantly is SDN is getting enough traction to drive significant investment and tough decisions to be made by the networking incumbents. As more vendors define their SDN strategy, we will see an increasing amount of commercial products, rather than …
More Details About The Cisco ONE Controller Announced
Cisco has begun further unveiling more details about the Cisco ONE controller, currently in early beta. The announcement, specifies new SDN applications and hardware support for a select few existing products and new ones like the Catalyst 3850. Also recently announced, is the new Nexus 6000 switching product, along with a NAM module for the Nexus 7000. The Nexus 6000 is 96-ports …
Installing Wireshark On Linux for OpenFlow Packet Captures
This tutorial is for those who are learning, troubleshooting and developing using the OpenFlow wire protocol. Packet captures are vital to troubleshooting issues that occur between the switch and OpenFlow controller. The instructions are for installing Wireshark from package or compiling and installing from source. It also walks through installing the OpenFlow v1.0 dissector plugin for Wireshark. Once the plugin …
The SDN Impact on Net Neutrality
Over the next 10 years the networking industry is going to transform much more than it has in the previous ten year. The catalyst as we know it today is called SDN. What SDN really means is, the time has come to bring networking into the same decade conceptually, as the rest of the computing world. Networking will move away …
OpenStack Multi-Node DevStack Nova Network Tutorial
DevStack is a scripted OpenStack installer maintained for developers to prototype and debug. It is also handy for operators to proof concepts and test new services and configurations. This is a good starter for folks new to OpenStack to help understand how to install and operate OpenStack. Some folks have been asking about multi-node DevStack deployment using nova network, so …
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 …
Best Cat Videos of 2012
took a rare, but important intermission from technology related posts to write about the one and only thing cooler than computing, programming and networking, that is videos of cute cats and kittens! These are the best cat videos of 2012 that I remember watching this year. Pets love us unconditionally that can only come from pure innocence. As they depend …
Recent Posts
- One persons edge is the next persons core.
- RT @Ben_Pfaff: I just pushed userspace switch support for NetBSD, by YAMAMOTO Takashi, to #openvswitch master branch.
- Network Design Challenge – Small Little Clouds - via @packetpushers community http://t.co/etxtchpPJH
