A great Q&A about long-distance vMotion, stretched HA clusters, and such by Ivan Pepelnjak. Ivan's a networking expert, but he has gone deeper into the various VM-over-distance technologies than anyone I know. Just go read it: Long-Distance vMotion, Stretched HA Clusters and Business Needs … [Read more...]
Why Is Cisco Bothering with “Open” EIGRP?
January 31, 2013 by Leave a Comment
Here's a thoughtful piece by Anthony Burke over at our friends, Packet Pushers. Cisco is introducing an "open" version of EIGRP, but why? And how open is it really? What Cisco should have said in its announcement was that, “Cisco EIGRP is now an open standard, but…” Read more: Why Is Cisco … [Read more...]
Long-Distance vMotion, Stretched HA Clusters and Business Needs
January 30, 2013 by Leave a Comment
Ivan Pepelnjak explains why getting the business needs right is so important: Based on a true story ... A while ago I was sitting in a roomful of extremely intelligent engineers working for a large data center company. Unfortunately they had been listening to a wrong group of virtualization … [Read more...]
The SDN Impact on Net Neutrality
January 29, 2013 by Leave a Comment
Brent Salisbury draws a parallel between SDN and net neutrality, showing how technology can enable carriers to discriminate, double-dip, and more. A great read! 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 … [Read more...]
Data Center Overlays 101
January 28, 2013 by Leave a Comment
Joe Onisick did a great job laying out the various datacenter network overlay technologies in this Show Me "chalk talk" presentation. … [Read more...]
OpenCompute Servers and the Impact on Networking @EtherealMind
January 26, 2013 by Leave a Comment
Greg Ferro on the implications of OpenCompute on networking: Here is what I’m imagining. I have an OpenCompute rack with blade of CPUs and Memory instead of racks of routers. Typical Intel servers can handle 10Gbps of routing easily and up to 40Gbps. That’s a lot of WAN connections and Internet … [Read more...]
Putting an ONF Conspiracy Theory to Rest
June 7, 2012 by Leave a Comment
Brad Casemore doesn't buy the conspiracy theory that says the Open Networking Foundation (ONF) Technical Advisory Group (TAG) is a vehicle for a vendor (read Cisco) coup. Here's why. So, we have the ONF, and it’s unlike the IETF and the IEEE in more ways than one. While not a standards body … [Read more...]
Cyclomatic Complexity of OpenFlow-Based SDN May Drive Market Innovation
June 6, 2012 by Leave a Comment
Lori MacVittie dives into the difficulty of enabling SDN/OpenFlow controllers. It's really worth a read! In other words, the gut instincts of network operators is right: code controlling core routing and switching – which will be necessarily high in cyclomatic complexity by nature of what it … [Read more...]
UCS and VCS a great combination
June 6, 2012 by Leave a Comment
I'm not sure many Cisco UCS customers are really going to go out and buy Brocade VCS for converged networking, but they could. Here's "UCS Guru" Colin Lynch on the benefits of this combination. The ease and simplicity of setting up a Brocade VCS Fabric will no doubt be its main differentiator … [Read more...]
Layer-2 Network Is a Single Failure Domain
June 5, 2012 by Leave a Comment
Surprise! No amount of networking technology will make Layer-2 networks be the correct choice for everything they're being pitched for. This topic has been on my to-write list for over a year and its working title was phrased as a question, but all the horror stories you’ve shared with me over … [Read more...]