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This blog is about Good Links I've come across recently, as of 10/14/2013. Admittedly, some are older links, in some cases ones I already knew about. Topics include FabricPath, OTV, ASA Cluster on Nexus, VPC, VXLAN, DFA (Dynamic Fabric Automation), ACI (Application Centric Infrastructure), and VMware/Nicira NSX. For VXLAN, I'm…

In a spirit of fairness (and also because it is legally required by the FTC), I am posting this Disclosure Statement. It is intended to alert readers to funding or [...]

I’ve been thinking about many of the topics that were discussed in the recent NFD6) meetings I attended last month. What really stands out for me is that the use case [...]

I've been reading blogs and articles about Application Aware Networking, and thinking. There seem to be many rather differing ideas about it. A lot of vendors / people seem to think the applications will (and should) tell the network what they want. Let's think about that together ...   The Application…

I am pleased to state that Nic Bhasin has earned his Juniper Networks Certified Internet Expert Service Provider (JNCIE-SP) certification!  Way to go Nic! This is NetCraftsmen’s first Juniper IE certification, [...]

Brocade was kind enough to go over some new product / feature announcements with me. They are being formally announced this morning, Wednesday September 18, 2013. I'm going to pass along much of the press release information in condensed form, and then comment at length on the 5600 vRouter announcement. …

This blog is a quick note about some Nexus issues I've encountered or heard about recently.  The saga starts with a Nexus 7010 with M1 and F1 cards having many EIGRP resets. Problem #1 Nexus 7K connected to 6500 switch. The configuration on both Nexus and connected 6500 looked approximately like:…

I was happy to accept an invitation from Tom and Stephen at Gestalt It to participate at the upcoming Network Field Day 6 (NFD6) http://TechFieldDay.com during the event – I [...]

I have been thinking about the interaction between LACP system IDs, port-channels on switch stacks, and virtual port-channels on Nexus gear. I saw some 'interesting' behaviour last week when helping a customer update the software on his 3850 stack. His stack was connected to a vPC port-channel on a pair…

I have some comments about a recent article on Using Network Virtualization in Campus Networks. I appreciate the author’s attempt to compare. The article omitted some relevant points. Or the author [...]

Do you recall a lot of talk a year or two ago about SDN or perhaps OpenFlow and finding the right level of abstraction? What ever happened to that? Did we [...]

SDN has to be one of the most amazing hype flareup ever. Pour VC capital on and it behaves sort of like marketing kerosene. Is there a networking / management product left that doesn't claim to be doing SDN?