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: ACE, ASA, ASA 1000V, CIAC, Intelligent Automation for Cloud, Nexus 1000v, Nexus 1010, OpenStack, SDN, TechWiseTV, Virtual Security Gateway, vPath, vsg, vWAAS, VXLAN
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).
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Tags: ACE, ADC, application delivery controllers, ASA 1000V, cloud, Forrester Research, IaaS, Nexus 1000v, virtual application services, virtual overlays, Virtual Security Gateway, vsg, vWAAS
As we start off this New Year, how about including a resolution to improve application delivery? In Best Practices for Application Delivery in Virtualized Networks – Part I , we covered key application delivery challenges that have come up due to the complexities of managing the many types of applications that enterprises use today, and further complicated by data center consolidation and virtualization. We then covered some best practices, courtesy of Dr. Jim Metzler’s 2011 Application Service Delivery Handbook, which recommended taking a lifecycle approach to planning and managing application performance.
A key step to the lifecycle approach is to implement network and application optimization tools, such as WAN Optimization solutions and Application Delivery Controllers, including server load balancers. Of course, these solutions are not new to the market and already address many of the needs that exist with delivering enterprise applications in virtualized data centers – namely, the need to ensure network reliability, availability and security for users accessing these applications. In this post, we will discuss a recent study by IDC, where IT decision makers across Europe and the US spoke out about their strategies for using server load balancers to deal with emerging challenges.
. What important attributes do you look for in your server load balancers?
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Tags: ACE, application control engine, application delivery, application delivery controller, application performance, availbility, Cisco OTV, cloud bursting, data center security, DWS, Dynamic Workload Scaling, enterprise application, IDC, jim metzler, load balancer, Load Balancing, network optimization, Network Services, Nexus 7000, OTV, Overlay Transport Virtualization, resiliency, security, server load balancer, server load balancing, Tina Feng, Unified Network Services, virtual machine intelligence, virtual network services, virtualization
The Cisco Global Certification Team (GCT) is proud to announce the completion of USGv6 and ReadyLogo Phase 2 certifications for the following Cisco products:
- 4500-SUP7E USGv6 and ReadyLogo Phase 2
- ISR-G2 IPSec ReadyLogo Phase 2
- Linksys E4200 USGv6 and ReadyLogo Phase 2
- 79xx IP Phone USGv6 and ReadyLogo Phase 2
- ACE4710 USGv6 and ReadyLogo Phase 2
- ACE 30 blade for 6500 USGv6 and ReadyLogo Phase 2
- ACE 30 blade for 7600 USGv6 and ReadyLogo Phase 2
- Sx200 SOHO switch USGv6 and ReadyLogo Phase 2
- Sx300 SOHO switch USGv6 and ReadyLogo Phase 2
- ASR1K ReadyLogo USGv6 (retest) and ReadyLogo Phase 2
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Tags: 79xx, ACE, ASR1K, Cisco, g2, ip, IPv6, ISR, Phones, ReadyLogo, USGv6
Here are some steps to help with backing up ANM. This is useful for migrations, upgrades or restores.
Backing up ANM
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Tags: ACE, ANM, Load Balancing