Businesses and Governments are using multiple clouds in different ways. They are moving core functions in to a controlled private or managed cloud. But they are still using public clouds for new services, content and demand spikes. Some large enterprises are becoming specialized cloud providers for smaller businesses, while traditional providers are using different clouds for different tiers of service. These trends are leading to a world of many clouds with numerous service choices from a variety of cloud vendors. For example IT organizations can:
As the saying goes, “Change is the only constant.” And as partners have seen, customers are constantly grappling with a love-hate relationship between applications and networking. As new applications appear, the infrastructure is required to evolve, which brings about a whole new wave of application innovation that then forces the infrastructure to evolve again and again. This endless cycle has played itself out as applications transitioned from mainframes to client/server to web and now to cloud.
Cisco is extending the capabilities of Unified Fabric to support a world of many clouds with the scalability and flexibility of the new Nexus 6000 series, the traffic insight of Nexus 7000 NAM, Nexus 1000V InterCloud and VNMC InterCloud hybrid cloud solutions and updates to the Cisco ONE portfolio including the new Cisco ONE Controller.
These upgrades will help your customers protect their investments because it can easily be extended to accommodate new applications and usage models as they emerge, allowing customers to shift from “infrastructure defining what apps can do” to “apps defining what infrastructure must do.”
Here are some highlights of the new offerings: Read More »
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.
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The evolution of the applications environment is creating new demands on IT and in the data center. Broad adoption of scale-out application architectures (i.e. big data), workload virtualization and cloud deployments are demanding greater scalability across the fabric. The increase in east/west (i.e. server-to-server) traffic along with the higher adoption of 10GbE in the server access layer is driving higher bandwidth requirements in the upstream links.
Following up on the introduction of 40GE/100GE on the Nexus 7000 Series, today we unveil the new Nexus 6000 Series, expanding Cisco’s Unified Fabric data center switching portfolio in order to provide greater deployment flexibility through higher density and scalability in an energy efficient form factor.
The Cisco Nexus 6000 Series is industry’s highest density full-featured Layer 2 / Layer 3 40 Gigabit data center fixed switch with Ethernet and Fiber Channel over Ethernet (FCoE) – an industry first!In addition to high scalability, Nexus 6000 Series offers operational efficiency, superior visibility and agility.
Some say “Nexus 6000 Series is a red carpet platform that will turn heads”. We agree! It’s because of …
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.
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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.