I’m not a car person and I don’t worry too much about what’s under the hood. That means that I’m just a car user, I only want to turn the ignition key and drive. In the Data Center world, the server team is typically a user of the network. Server guys don’t want to know how the network is implemented. They just want their VLANs to extend to the whole network so that they can connect their devices with no constraint, without having to worry about high availability, risk containment, link provisioning… network stuff. That’s precisely what FabricPath is designed to offer them: a network that looks like a single switch, the simplest networking entity. This “Fabric” offers efficient any-to-any connectivity with high bandwidth and low latency, all without having to understand how it works.
Of course, this user perspective is an abstraction. The following Figure 2 represents an example of the physical topology of the network, a Clos fabric, typical in Data Center environments. Note that this could just as well be a ring, a star, or even a network distributed across two sites. FabricPath turns an arbitrary topology into a Fabric and does not lock you into a particular model.
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Tags: ethernet, Ethernet Fabric, fabric architecture, FabricPath, l2mp, Layer 2, multipathing, nexus, STP, switching, TRILL, Unified Fabric
Based on the positive feedback I received from my Cisco UCS videos, I decided it was time to tackle a slightly more complicated set of topics. While it’s fairly easy to come up with a set of keywords that spell out C-I-S-C-O, sometimes it’s valuable to take off the training wheels and go a little broader. So in today’s video, we combine the simplicity of M&Ms with the complexity of VMs. How do we take technology that provides tremendous value to customers and explain it in a way that’s fun and easy to replicate? Well, let’s see what happens… Read More »
Tags: Cisco Nexus, Cisco OTV, Cisco UCS, FabricPath, LISP, Nexus 1000v, Virtual Security Gateway, virtualization, VM Sprawl, VM Stall
I’ve written before (here, here, and here) that Cloud Computing is more than some cool software running on a server. Sure, the applications are the sizzle on the steak (+ all the marketing terms -- dynamic, elastic, on-demand, etc.), but there’s a little more to it than that. A user needs to access the application, get the information quickly (or sent it information), and feel confident that the information was delivered securely. The application doesn’t always know what type of device will access it (PC, Mac, Browser, Tablet, Smartphone, etc.), so it can’t be 100% sure it’ll deliver the best user-experience. And users will demands that applications continue to run regardless of the mobile device’s location. All those demands on applications get a lot easier, and in some cases require, an intelligent network providing the infrastructure.
But people often forget those details because they have become so accustomed to a robust network always being there. They might struggle to define the value of that network, just as Kodak did in defining “original technology” in the famous Mad Men episode (Carousel).
Don’t take my word for it, hear what Cisco Cloud CTO Lew Tucker had to say during a recent set of meetings with industry analysts -- here, here, here, here and here. Read More »
Tags: Cisco UCS, Cloud Computing, FabricPath, nexus, OTV, Virtual Security Gateway, virtualization, vWAAS, Why the Network Matters
[Part III of our blog series on Cisco Data Center Business Advantage. Part I, II, IV, V, VI]
Deliver information fast…really fast!
Never go down, ever!!
Enable great user-experiences, regardless of where the user is on the planet.
Those are the table stakes requirements of today’s Data Center networks. Do that and business leaders will ignore it like a referee that never makes a bad call in a sporting event. Click-to-“Right Now”, Borderless, 24x7x365 networks. No problem. We can do that.
But with the pace of technology change in today’s Data Center, so much more is being expected of the network: Read More »
Tags: Application Mobility, Borderless Networks, Data Center Business Advantage, FabricPath, FCoE, High Availability, Live Migration, OTV, SMT, Unified Fabric, Vblock