In part one of this post I covered the basic theory of operations and functionality of VXLAN (http://www.definethecloud.net/vxlan-deep-dive.) This post will dive deeper into how VXLAN operates on the network. Let’s start with the basic concept that VXLAN is an encapsulation technique. Basically the Ethernet frame sent by a VXLAN…
Tag: Virtualization
VXLAN Deep Dive
I’ve been spending my free time digging into network virtualization and network overlays. This is part 1 of a 2 part series, part 2 can be found here: http://www.definethecloud.net/vxlan-deep-divepart-2. By far the most popular virtualization technique in the data center is VXLAN. This has as much to do with Cisco…
Digging Into the Software Defined Data Center
The software defined data center is a relatively new buzzword embraced by the likes of EMC and VMware. For an introduction to the concept see my article over at Network Computing (http://www.networkcomputing.com/data-center/the-software-defined-data-center-dissect/240006848.) This post is intended to take it a step deeper as I seem to be stuck at 30,000…
Thoughts From a Tech Leadership Summit
This week I attended a tech leadership Summit in Vail Colorado for the second time. The event is always a fantastic series of discussions and brings some of the top minds in the technology industry. Here are some thoughts on the trends and thinking that were common at the event….
Forget Multiple Hypervisors
The concept of managing multiple hypervisors in the data center isn’t new–companies have been doing so or thinking about doing so for some time. Changes in licensing schemes and other events bring this issue to the forefront as customers look to avoid new costs. VMware recently acquired DynamicOps, a cloud…
Ignoring BYOD Spells Disaster!
Last week in a blog titled "BYOD–Bring Your Own Disaster," I urged caution and scope for BYOD projects. This week I’m playing devil’s advocate with myself. A conversation with Greg Knieriemen (@knieriemen) got me thinking of the consequences of ignoring BYOD. Let’s dive into the risk of burying your head…
The Idle Cycle Conundrum
One of the advantages of a private cloud architecture is the flexible pooling of resources that allows rapid change to match business demands. These resource pools adapt to the changing demands of existing services and allow for new services to be deployed rapidly. For these pools to maintain adequate performance,…
Hypervisors are not the Droids You Seek
Long ago, in a data center far, far away, we as an industry moved away from big iron and onto commodity hardware. That move brought with it many advantages, such as cost and flexibility. The change also brought along with it higher hardware and operating system software failure rates. This…
Server Networking With gen 2 UCS Hardware
** this post has been slightly edited thanks to feedback from Sean McGee** In previous posts I’ve outlined: How UCS server failover occurs from a network perspective: http://www.definethecloud.net/ucs-server-failover How Inter-fabric traffic is handled in End-Host mode: http://www.definethecloud.net/inter-fabric-traffic-in-ucs How inter-fabric traffic is handled in switch mode: http://www.definethecloud.net/inter-fabric-traffic-in-ucspart-ii If you’re not familiar…
WWT’s Geek Day 2012
A BrightTALK Channel Related posts: World Wide Technology’s Upcoming Geek Day Additional Private Cloud Blogs 10 Things to Know About Cisco UCS Thoughts From a Tech Leadership Summit Thoughts From a Global Technology Leadership Forum