Greg Ferro


Upcoming Events

Where the Cloud Touches Down: Simplifying Data Center Infrastructure Management

Thursday, July 25, 2013
10:00 AM PT/1:00 PM ET

In most data centers, DCIM rests on a shaky foundation of manual record keeping and scattered documentation. OpManager replaces data center documentation with a single repository for data, QRCodes for asset tracking, accurate 3D mapping of asset locations, and a configuration management database (CMDB). In this webcast, sponsored by ManageEngine, you will see how a real-world datacenter mapping stored in racktables gets imported into OpManager, which then provides a 3D visualization of where assets actually are. You'll also see how the QR Code generator helps you make the link between real assets and the monitoring world, and how the layered CMDB provides a single point of view for all your configuration data.

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A Network Computing Webinar:
SDN First Steps

Thursday, August 8, 2013
11:00 AM PT / 2:00 PM ET

This webinar will help attendees understand the overall concept of SDN and its benefits, describe the different conceptual approaches to SDN, and examine the various technologies, both proprietary and open source, that are emerging. It will also help users decide whether SDN makes sense in their environment, and outline the first steps IT can take for testing SDN technologies.

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Cisco ACI Solves All Your Data Center Network Problems

Cisco claims that over time, support for ACI will extend to most of the current products produced by the partners pictured in the image above. That will require APIC support to be added to each version of code for each device, however, and that will takes months or even years to accomplish. Until Cisco leadership commits all business units publicly to this strategy, I remain somewhat cautious to endorse this eventuality.

Physical and Virtual Networking

The most important element of the Cisco ACI strategy is that it creates an overlay network that is independent of the network endpoint. ACI works for businesses that want to simply automate "ports and VLANs" or that want to build a simple multi-tenant LAN system to replace complex MPLS networks. It also works for systems that use fully automated flow management and offers support for OpenStack, Hyper-V and appliance-based network services like firewalls, network taps, intrusion detection and load balancers.

For many companies, their ITIL-derived business processes make it impossible to transform their organizations and move to fully virtualized network capability. This degree of structural change breaks the foundation of ITIL modeling by transgressing service boundaries. It will take some time for customers to abandon entrenched ITIL structures that clearly will not work in this system.


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One big benefit of ACI, according to Cisco, is that its integrated hardware/software model will be significantly cheaper than the software-only model. This claim is based on the entire solution, not just capital costs. Because APIC is a tool for managing the entire data center at large, TCO can be drastically reduced, says Cisco.


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This is a large and multi-faceted product announcement, and this article discusses a few of the important areas. There are many other topics for each customer to evaluate against their own needs. Many customers will decide to remain with the Catalyst 6800 in a tree-based network, or opt for low-cost Layer 3 ECMP solutions using the Nexus 6000. Others will choose the Nexus 7000 to access FEX and FabricPath to deliver large Layer 2 Ethernet domains.

For customers who are considering SDN for their data centers, the Cisco ACI strategy will be arriving sometime in late 2014. That's just about enough time to get planning and budgeting -- if you hurry.


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