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A Unified L2/L3 IP Based Overlay for Data Centres: another use-case for The Location Identity Separation Protocol

It is amazing how the data centre world has changed in the last few years.  A Data Centre used to be a collection of network elements to interconnect static servers (and their associated storage), with traffic patterns that were highly predictable and mostly north-south.  Cloud and virtualization have changed all of this: a data centre is now a collection of compute and storage resources which can be securely sliced up into virtual networks and placed anywhere according to real time needs, interconnected by a fabric.  The virtualization of servers, network services such as firewalls and load balancers, and even network devices such as switches and routers, has created a very dynamic landscape in terms of how fast you could configure a virtual network, in a way where location shouldn’t really matter, and where compute and storage resources can be added on the fly, based on demand.  Multi-tenant Data Centres, such as the one to deploy Virtual Private Clouds, need to support 10000’s of these virtual networks.  And every one of these virtual networks needs a lot of different service instances to stitch together the virtual network across virtual servers, virtual switches, virtual firewalls, virtual load-balancers, and virtual routers.  Traffic patterns have shifted to East-West, because of the new applications which spread processing across many hosts, and because of the ‘location freedom’ that virtualization allows.  Network infrastructure needs to be cost-effective to handle all this traffic, while the increased lookup-table size caused by the any to any traffic patterns often led to increased cost.  Read More »

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Nexus 1000V Provides Cloud Switching to New Windows Server 2012 Platform

September 4, 2012 at 4:39 pm PST

Windows Server 2012 logoToday marks the general availability of the eagerly-awaited Microsoft Windows Server 2012 platform.  According to Microsoft, “Windows Server 2012 redefines the server category, delivering hundreds of new features and enhancements spanning virtualization, networking, storage, user experience, cloud computing, automation, and more.”  Earlier Cisco blog posts discussed how Cisco has collaborated with Microsoft to achieve Windows 2012 certification for our UCS servers, as well as integrating our management tools into Microsoft System Center and PowerShell.

Microsoft Build Conference 2011 - Demo of Nexus 1000V virtual switchIn this post, I’d like to highlight the integration of the Nexus 1000V virtual switch into the Windows Server 2012 platform, and particularly the Hyper-V hypervisor. We have been working closely with the Windows Server 2012 team for the past few years towards this goal, and announced Nexus 1000V and VM-FEX support for it at the Microsoft BUILD conference last year.  Read More »

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The Next Evolution of Cisco’s Nexus 1000V Virtual Switch to be Featured at VMworld

August 24, 2012 at 5:00 am PST
Remote Active - Standby VSM pairs

VSM's across remote data centers

Nothing sits around and gets stale for long at Cisco (outside the break rooms anyway). On the heels of shipping our Nexus 1000V 1.5.2 release earlier this week (which you can download from here), we are ramping up to show the upcoming generation of the virtual switch next week at VMworld in San Francisco. This new major release 2.1 will be going into beta in October, and will represent a quantum leap in ease of deployment and management, as well as greater security for cloud environments.

Features of the new Nexus 1000V 2.1 Release:

  • vCenter Plug-in – Provides a holistic view of the virtual network to the server administrator from within VMware vCenter. A Nexus 1000V dashboard in vCenter shows the virtual supervisor module (VSM) and virtual ethernet module (VEM) details, such as VSM health status, license information, PNIC information, connected VM’s, et al.
  • Support for Cisco TrustSec -- Extends Cisco TrustSec security solutions for network-based segmentation of users and physical workloads to virtual workloads, leveraging Security Group Tags (SGT) for defining security segments. Data center segmentation and consistent security policy enforcement can now be implemented across physical and virtual workloads.
  • Cross Data Center High-availability – Supports split Active and Standby Nexus 1000V Virtual Supervisor Modules (VSMs) across two data centers to implement cross-DC clusters and VM mobility while ensuring high availability. In addition, VSM’s in the data center can support VEM’s at remote branch offices. Read More »

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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 »

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It’s not just what we make It’s what we make possible – Cisco at VMworld US 2012

August 15, 2012 at 9:20 am PST

VMworld 2012 is around the corner, and like the past years , Cisco as a key player in the word of network, virtualization and now servers with the Unified Computing Systems, is a sponsor .
In the following days  you will read on this blogs a series of information on our participation . But I encourage you to check today the following website to have a good overview of what we will present in terms of demos on our booth (#1213) , but also what are the key sessions we are leading . Visit here
Amongst the numerous solutions, I know for a fact (based on the numbers of readers of our blogs), that VXLAN is a very compelling topic. So I invited Han Yang to introduce his session:

Best Practice for deploying VXLAN with Cisco Nexus 1000V and VMware Cloud Director
INF–NET2373, Tuesday August 28 5:00 pm – 6:00 pm

If you want to know more about VXLAN, please check the recent blogs on this topic by Gary Kinghorn and Omar Sultan:

Read More »

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