Cisco Blogs


Cisco Blog > Data Center and Cloud

New Nexus 1000V Virtual Switch 1.5.2 Release Now Available

August 21, 2012 at 5:00 pm PST

Nexus 1000VToday Cisco made a new version of its Nexus 1000V virtual switch available for immediate download. The newly available Nexus 1000V 1.5.2 release can be downloaded for a 60 day free trial from here. As most of you know because you’ve been reading all my blog posts over the last year, the Nexus 1000V is the edge switch for virtual environments, bringing the network edge right up to the virtual machine, by residing in the hypervisors and connecting virtual ports to the physical network and beyond. The Nexus 1000V is the foundation for our entire virtual network overlay portfolio, including all of our virtual L4-7 application and security services, our cloud orchestration software, VXLANs and more.

The new release supports the latest version of VMware’s vSphere hypervisor, and includes vPath 2.0 with service chaining between virtual services. I wrote a blog post a couple of weeks ago about the importance of vPath in inserting virtual services into data center networks, and now we also have a great new white paper available on vPath service insertion technology. The most important enhancement in vPath 2.0 is that you can now insert multiple services in the path between the source and destination addresses in your virtual network.  Read More »

Tags: , , , , ,

vPath: The Secret Sauce to Enabling Virtual Network Services

July 31, 2012 at 4:09 pm PST

Wow, there’s been a lot of news in the SDN and virtual networking space in the last week or so! VMware acquiring Nicira, and Oracle acquiring Xsigo are testimony to how important virtual overlay networks and virtual switching infrastructure has become for data center vendors, and how integral they are to each company’s strategy. Speaking of our own Nexus 1000V-based virtual networks, last week I provided an overview and some new resources on Virtual Extensible LANs (VXLAN) for Nexus 1000V virtual switches. That turned out to be quite a popular post, so I’m following up this week on another fundamental component of Nexus 1000V-based virtual networks, vPath, the secret sauce that allows us to deploy virtual network services in the data center.

What is vPath? Well, if VXLANs can set up secure tunnels over a shared, multi-tenant virtual network, vPath is a feature of the Nexus 1000V virtual switch that can redirect traffic to virtual application services before the switch sends the packets down into the virtual machine. Very important stuff, but how does it do that? I find that my blog posts are more popular the less I type, and the more I embed cool TechWiseTV videos that illustrate the concept, so I’m dusting off this classic from the TWTV team on just how vPath does that with our Virtual Security Gateway (VSG). Take it away Robb

But wait, there’s more… Read More »

Tags: , , , , , , , , , , , , , ,

New Forrester Report Offers Insights to Deploying Virtual Network Services

July 2, 2012 at 12:03 pm PST

An interesting new report has been issued by Forrester Research that provides a great deal of market research and insight into the challenges of the data center network supporting large-scale virtualization. The report provides a representative view about the types of obstacles organizations are facing and where they are making new investments, along with some recommended best practices. As usual, the application services infrastructure is one of the biggest challenges, i.e., how to replicate the layer 4-7 and security services that mission-critical applications require in a highly virtualized or hybrid cloud environment. While servers and networks have largely been virtualized, relying on physical firewalls or application controllers can undermine or limit the beneficial effects of virtualization.

Forrester starts by pointing out what benefits customers are looking for and where they see the greatest growth in virtualization going forward. Over the next four years, Forrester sees 500% growth in total virtual x86 workloads that will be hosted in private cloud IaaS (Infrastructure as a Service), where virtual servers are isolated between tenants, compared to 170% growth in private cloud pools in organizations’ own data centers. Forrester points out that overlooking virtual services can “negate private and public cloud investments”, however. 33% of their respondents indicated that they have difficulty integrating public services with internal virtual infrastructures, with 24% specifically citing “frustration with capability, agility and flexibility of traditional application delivery controllers (ADC)”. (see next table).


Read More »

Tags: , , , , , , , , , , , ,

Toyota Tsusho Deploys Cisco Virtual WAAS to Enhance Performance

February 24, 2012 at 11:41 am PST
vWAAS Bandwidth Reduction Chart

A key WAN optimization benefit is the mitigation on bandwidth consumption during the huge traffic burst on Mondays, when employees arrive at work and email attachments come to their mailboxes. This chart shows actual bandwidth consumption well below what applications would have required.

A few weeks back I highlighted a report from VCE about our virtual WAAS (vWAAS) WAN optimization solution running on the Vblock platform. Now comes a new case study of a vWAAS deployment at Georgetown, Kentucky-based Toyota Tsusho America, Inc. (TAI). For the Georgetown data center, TAI decided on vWAAS rather than WAAS appliances. The detailed case study is a compelling argument for virtualizing WAN optimization for improved high-availability and more streamlined operations.

“We were an early adopter of vWAAS,” says Chris Jones, TAI Manager of Infrastructure and Operations, “and we perceived value in placing WAN optimization close to the data rather than near the WAN edge. In particular, we felt we could have lower-cost high availability (HA) for WAN optimization by leveraging the Vblock HA. And we perceived operational simplicity in the event of failure, compared with replacing a physical appliance and rebuilding the cache.” Read More »

Tags: , ,

Lippis Video Introduces Cisco’s Network Virtualization Portfolio

February 6, 2012 at 9:40 am PST

Nick Lippis of the Lippis Report sits down with Prashant Gandhi, Cisco’s Sr. Director of Marketing for Virtualization in our Server Access and Virtualization Business Unit, to discuss all things virtual in this new video podcast. Prashant does a great job showing why Cisco’s network virtualization stack is the most complete in the industry, including the Nexus 1000V virtual switch, the Virtual Security Gateway (VSG), the ASA 1000V Cloud Firewall, the virtual Wide Area Application Services (vWAAS) WAN optimization solution, Network Services Manager (NSM), Virtual Network Management Center (VNMC), and the Nexus 1010 and new 1010-X Virtual Services Appliance. When you include recently announced technologies like VXLAN and support for the Microsoft Windows Server 8 Hyper-V hypervisor later this year, a great overview video like this can help you keep up with all the recent innovations.

Tags: , , , , , , , , ,