Amazon just published my 4 star review of “Interconnecting Data Centers Using VPLS (Ensure Business Continuance on Virtualized Networks by Implementing Layer 2 Connectivity Across Layer 3) ” Before we get too deep into it, I need to be up front that while I LOVE Virtualization, I still flirt a bit with networking and the
-> Continue reading Book Review: Interconnecting Datacenters Using VPLS
Apparently networking in Ubuntu goes funny when you change it’s Mac Address, and picks up the changed MAC as a new NIC, and assigns it the next number sequentially. While you can get around this by statically setting the MAC address, you generally want to avoid that. Having duplicate MAC addresses is a “Bad Idea”
-> Continue reading Ubuntu Cloning – Mac Address Change Mayhem.
Well, this being the third time I’m trying to write this post (some issues with my Wwindows 7 VM, something to be said for autosave). VMware recently released a white paper showing a performance comparison between the e1000 and enhanced vmxnet drivers. In most cases the vmxnet driver outperformed and used less CPU overall than
-> Continue reading e1000 vNIC’s Hate Me – How To Find And Change vNic Types With The VI ToolKit
The VMware Networking Blog has posted a useful set of slides on troubleshooting VMware networking: At VMworld last September, one of our engineering staff, Srinivas Neginhal, delivered a fabulous breakout session on the topic of “VI3 Networking: Advanced Troubleshooting.” Srinivas squeezed a 79-slide deck into the available time—he could have easily doubled or tripled the
-> Continue reading VI3 Network Troubleshooting Guide
When your network engineer, or other random folks are looking for some assistance in updating their vlan map Visio, or are generally trying to make their work yours (who doesn’t love to delegate) you can bash out this one liner against your VI, and instantly have a list of what VM is on what VLAN.
-> Continue reading What VLAN is that VM On? Ask PowerShell!
Not sure when I came across this, and how late to the game I am on it, but alas, cleaning out my Firefox tabs today I came across a deployment diagram for the Nexus 1000v on ESX4: Some key observations of importance: * The version of ESX running here is ESX 4.0 (not yet
-> Continue reading Y’all See This? – Nexus 1000v Architecture Write Up