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Routing Protocols on NSX Edge Services Router 27 Aug 2013 | 08:27 am

VMware gave me early access to NSX hands-on lab a few days prior to VMworld 2013. The lab was meant to demonstrate the basics of NSX, from VXLAN encapsulation to cross-subnet flooding, but I quickly v...

What is VMware NSX? 26 Aug 2013 | 05:02 pm

Answer#1: An overlay virtual networking solution providing logical bridging (aka layer-2 forwarding or switching), logical routing (aka layer-3 switching), distributed or centralized firewalls, load b...

SDDC Interview on SDNCentral 24 Aug 2013 | 03:09 pm

SDN Central published a short SDDC-focused interview with Brent Salisbury and myself. Enjoy ... and don't forget to register for the SDDC symposium if you're in Silicon Valley in September. Have you ...

Design Options in Dual-Stack Data Centers 23 Aug 2013 | 06:21 am

Tore Anderson started his part of the IPv6-Only Data Centers webinar with a comprehensive analysis of numerous design options you have when implementing dual-stack access to your data center. Unless ...

50 Shades of Statefulness 22 Aug 2013 | 06:48 am

A while ago Greg Ferro wrote a great article describing integration of overlay and physical networks in which he wrote that “an overlay network tunnel has no state in the physical network”, triggering...

How big is a big private cloud? 21 Aug 2013 | 05:57 am

During the UCS Director Overview Packet Pushers Podcast I listened to recently the participants started discussing the use cases and someone mentioned that UCS Director might not be applicable for sma...

Networking Enhancements in Windows Server 2012 R2 20 Aug 2013 | 05:51 am

The “What’s coming in Hyper-V Network Virtualization (Windows Server 2012 R2)” blog post got way too long, so I had to split it in two parts: Hyper-V Network Virtualization and the rest of the feature...

Nicira NVP Control Plane 19 Aug 2013 | 06:07 am

In the previous posts I described how a typical overlay virtual networking data plane works and what technologies vendors use to implement the associated control plane that maps VM MAC addresses to tr...

RSVP over DMVPN 17 Aug 2013 | 04:55 pm

A while ago Tomasz Kacprzynski asked me whether I'd ever run RSVP over DMVPN. I hadn't - after all, you'd only need that in VoIP environments and I try to stay as far away from voice as possible. In ...

Skip the transitions with IPv6-only data center deployment 16 Aug 2013 | 06:45 am

Before Tore Anderson, the rock star behind the IPv6-only data center, started explaining the interesting details of his ideas, I did a short intro explaining the need for IPv4+IPv6 access to your cont...

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