April 02, 2013 11:50 AM
A new SDN competitor is challenging VMware, Cisco and others. Nuage Networks, an Alcatel-Lucent venture, has announced Virtualized Service Platform (VSP), an SDN technology that employs virtual switches and network overlays.
March 15, 2013 15:54 PM
NSX, VMware's data center network virtualization platform, is really about public and hybrid clouds, where VMware has plans for growth. Here's why.
February 04, 2013 14:46 PM
Cisco's SDN architecture gets its keystone with the launch of the Cisco ONE Controller, a software package that supports OpenFlow and its own onePK APIs. Cisco also announced support for hybrid clouds with its Nexus 1000V product and the Nexus 6000, a new data center switch.
January 31, 2013 20:02 PM
VMware has invested in two overlay network approaches: the VXLAN standard originally conceived by Cisco and STT, drafted by SDN startup Nicira. VMware acquired Nicira for more than a billion dollars. Which will VMware choose? Here’s my take.
December 06, 2012 07:07 AM
This November Cisco bought three companies in the space of about 10 days. I’ll examine whether these purchases are part of a larger strategic move, or simply the result of internal competition among Cisco’s business units.
November 15, 2012 18:14 PM
Software-defined networking (SDN) and OpenFlow aren’t the same thing. We’ll clarify the technical differences and discuss a more important distinction: SDN emphasizes applications that drive network usability and business requirements, while OpenFlow is a technology to link an SDN controller and network devices.
November 14, 2012 16:25 PM
Networking has focused for years on speeds and feeds: how many packets you can handle and how many ports per device. But hosts and applications work with flows, which will force the network to adapt. Here’s why.
November 05, 2012 19:59 PM
Brocade is buying Vyatta, which makes a software router. The move puts Brocade squarely into the virtual networking space, with implications for its SDN strategy, security and more.
September 12, 2012 10:07 AM
The VDX 8770 is available in a 4- or 8-slot chassis switch that has a backplane, is designed to handle at least 4 Tbs per slot, and offers a new feature called Multi-Gateway L3 Forwarding. Learn more about the latest from Brocade.
August 02, 2012 15:17 PM
Data center and server failures can lead to high-profile service outages. Two Cisco protocols-- OTV and LISP--seek to minimize the effect of failures.
July 24, 2012 12:59 PM
After some ill-fated attempts, VMware has left private cloud networking to its partner Cisco. By purchasing Nicira, the company regains control of its virtual network strategy in a big way.
July 11, 2012 09:00 AM
Private cloud deployments can run into any number of challenges--and IT management is at the top of the list, according to our contributor. Learn why he thinks ITIL and TOGAF can slow IT progress.
June 25, 2012 11:13 AM
The Open Compute Project from Facebook may serve as a framework that could lead to cheaper, more efficient data center resources. But will we use Open Compute racks?
June 14, 2012 09:00 AM
The BGP Origin Authentication is a positive step, writes our blogger, but it has a downside. Learn more about IP address theft.
June 07, 2012 12:31 PM
Sure, big-name networking vendors are declaring support for OpenFlow? But what about software-defined networking? Who has an SDN strategy?
May 24, 2012 10:23 AM
Users have high expectations, thanks to the IT capabilities of their consumer devices. BYOD policies are popular, but can corporate IT hope to offer the same level of service?
May 22, 2012 15:15 PM
Is your VMware server a little long in the tooth? Are you reworking the quality-of-service configuration on the WAN link to delay an upgrade? Technical debt is alive and well--just be prepared to pay the price.
May 14, 2012 12:09 PM
Cisco says it intends to acquire Truviso. Our blogger asks: Can the networking company execute on this dive into the data analytics trend?
May 02, 2012 09:56 AM
If you've already set up a load balancer, do you really need a firewall, too? Our blogger says no.
April 12, 2012 12:55 PM
This week I've had a couple of vendors that are heavily promoting their customer case studies. In the last 10 years, I've been on all three sides of the customer case study game, and it's worth pointing out the harsh realities. In my view, customer case studies are a deeply flawed metric for product evaluation because the process around them is highly distorted, if not plain dodgy.
Best of the Web
VXLAN is an Experimental IETF draft of protocols to enable the creation of a large overlay, multi-tenant network.
: OpenFlow is poised to reach over-hyped status, yet there are practical, useful reasons for keeping an eye on Openflow. The biggest cloud players are involved and driving the feature creation.
Get a primer on the Openflow protocol and what it can do for networking.