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Nexus 1000V Winning Multiple Awards; VXLAN Scaling with BGP and More on Display at Cisco live!

June 24, 2013 at 4:00 am PST

Cisco Live Orlando EntranceCisco live is here and the news and awards around the Nexus 1000V cloud networking and services platform just keep rolling in. Last week we announced the Citrix NetScaler 1000V virtual application delivery controller, which will be sold by Cisco. The Microsoft Hyper-V version of Nexus 1000V was officially released this month, and just like its VMware vSphere companion, there is a free version users can download and deploy. On the heels of its release the Nexus 1000V for Microsoft Hyper-V won the Best of Show in the virtualization category at Microsoft’s Tech Ed Conference.

Best of InteropAwards just kept piling up for the broader portfolio as Nexus 1000V InterCloud, our secure hybrid cloud connectivity solution, won a Best of Interop award in Tokyo this month. And just to show the marketing team is pulling its weight, a Nexus 1000V InterCloud video won a prestigious Silver Communicator award in the Online video/ B2B category.

There’s lots of new stuff to talk about Cisco live as well. If you recall, in February I discussed enhancements that Cisco was making in the Nexus 1000V portfolio to eliminate the requirement in VXLAN for IP Multicast. [Those enhancements are now shipping in a new Nexus 1000V release 2.2, full code string 4.2(1)SV2(2.1).] This new version even supports virtual switching for up to 128 hosts and 4096 virtual ports for greater scalability.

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Lippis Podcast on All Things Great and New with VXLAN

May 31, 2013 at 1:08 pm PST

Han Yang PodcastThis week Nick Lippis from the Lippis Report sat down with Cisco Nexus 1000V Product Manager, Han Yang, to talk about the latest enhancements and trends with VXLAN, the primary virtual overlay tunneling technology in Cisco Nexus 1000V virtual networks.

In this 15 minute podcast (registration required), Han touches on three key innovations in the VXLAN area: 1) Cisco approaches to eliminating the requirement for IP Multicast by VXLAN (which I earlier blogged about here), 2) the support for virtual services, like virtual firewalls, with vPath (which I blogged about here), and 3) the use and availability of VXLAN gateways to connect virtual workloads to physical workloads in mixed application environments (which I haven’t blogged about yet, but probably should have :-)).

Nick’s podcasts always provide a good perspective on emerging technology trends and he takes complex topics and really helps his listeners get up to speed on the important bits. We always enjoy the chance to work with him. Give it a listen and let us know what you think.

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Primer on Cloud Confidence

February 11, 2013 at 1:37 pm PST

We had some sneak peeks at CiscoLive in London but as you probably know by now, this stuff was just formally announced last week.  Several demos worth looking at give you the foundation for what is important. Shashi Kiran is leading this effort and you can always count on a good quote:
“Cisco takes Unified Fabric to the next level delivering compelling customer value in an evolutionary manner, we offer a switch with the industry’s highest 40GbE density per rack unit, the simplest solution for the hybrid cloud model, and the most extensible network controller.”
Interesting….tell us more…
Three areas of innovation:  How we Scale (Nexus 6000), how we enable the Hybrid deployment model (Nexus 1000v InterCloud) and how we open it all up with Cisco ONE (Open Networking Environment)
 The family expands with the Nexus 6000
The new Nexus 6004 switch offers extremely
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Cisco Launches Nexus 1000V InterCloud – Part 1

February 4, 2013 at 9:00 am PST

In a recent post, I previewed some new hybrid cloud market research from Forrester that spoke to the business drivers and technical hurdles to cloud integration, and Shashi Kiran  has recently posted about lowering the barriers to hybrid cloud adoption. Today, as part of a larger cloud technology launch, Cisco is announcing a new hybrid cloud solution, Nexus 1000V InterCloud.

One of the fundamental capabilities for the world of many clouds is the ability to link various cloud environments into a single extended fabric with consistent capabilities, operations and management.  While previous Unified Fabric innovation has focused on physical/virtual consistency of the DC fabric, this announcement brings that consistency to the cloud. This new technology from Cisco extends the existing networking capabilities, L4-7 services and manageability of your enterprise into public and provider clouds to create a single consistent, reliable, predictable environment for all your physical, virtual and cloud workloads. This secure and seamless degree of integration to the hybrid cloud frees you to run and move applications where it makes the most sense, on-demand, without compromise.

[Note: Join us for a Live Announcement Webcast February 5: Register Here]

Cisco Nexus 1000V InterCloud

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Cisco VXLAN Innovations Overcoming IP Multicast Challenges

January 29, 2013 at 11:30 pm PST

At Cisco Live! in London this week, Cisco is demonstrating some enhancements to its Nexus 1000V virtual switch that greatly ease some of the challenges in deploying VXLAN in large scale cloud networks. VXLAN was designed to solve the problem of setting up traditional virtual networks (VLANs) in large multi-tenant cloud environments: the limited ID range for VLAN tags was quickly exhausted and a larger ID pool was needed for larger shared infrastructures. VXLAN thus becomes the foundation for a virtual network tunnel or virtual network overlays on top of physical networks. And unlike VLANs, VXLANs are designed to act as L2 virtual networks over L3 physical networks. For a more in-depth refresher on VXLAN, start here.

[Note: Join Cisco for a Live Announcement Webinar on Cloud Innovations on February 5: Register Here]

While VXLANs have certainly enabled a whole new level of scalability for virtual networks, one of the challenges in deploying VXLAN is its use of IP Multicast to implement the L2 over L3 network capability. Why is this? VXLAN is a MAC-in-IP encapsulation protocol in a UDP frame. The virtual switch that acts as the VXLAN termination (in Cisco’s case, the Nexus 1000V virtual switch) takes the L2 packet from the VM, wraps it in a L3 IP header, and sends it out over UDP. But the challenge is that there’s no way to determine which IP address should be used for the destination host (VXLAN termination point) at which the desired MAC address can be found. In other protocols, this can be accomplished within the network control plane and some MAC to IP mapping protocol, but the VXLAN specification indicates there should be no reliance on a control plane or a physical to virtual mapping table.

VXLAN frame

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