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Where the Cloud Touches Down: Simplifying Data Center Infrastructure Management

Thursday, July 25, 2013
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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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Thursday, August 8, 2013
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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 Flexes Custom Silicon Muscle for High-Frequency Trading Crowd

Cisco’s Nexus 3000 line has been aimed at high-performance applications, but most of the attention in that market has gone to startup competitor Arista, which has had its 7100SX family on the market for almost a year and a half now. The story may change with today's release of the Nexus 3548.

Latency is the key variable for high-frequency trading; all use cut-through switching to keep latency as low as possible. Arista’s switches and the Mellanox SX1036 had set the low-latency benchmark, at around 400 nanoseconds over 10-Gbps links. Cisco’s Nexus 3000 switches clocked in closer to 1,000 nanoseconds. The Nexus 3548 employs what Cisco calls Algo Boost (algorithm boost) to push latency down to 250 nanoseconds and below 200 ns in Warp mode. Warp mode restricts the size of the forwarding table, allowing the switch to make faster forwarding decisions. Feed replication (sending the same data out multiple ports) can incur latencies as low as 50 nsec.

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Algo Boost is now part of Cisco's ASIC design library, and the company says the performance numbers above are valid for unicast, multicast and Layer 2 and 3 switching. Cisco also provides precision time synchronization, which can be required by regulation in trading applications. In other words, the switch is fast, and that speed isn't dependent on turning off management functionality, according to Cisco. The Nexus 3548 also supports a bigger packet buffer than its predecessor, at 18 MB of shared buffer space.

The fixed-configuration, 48-port switch is just the first in the product line; Cisco will add to it, as it did with the Nexus 3000 series, and we’re told that Algo Boost will probably show up in other switch designs. With this product rollout, Cisco is reminding the market that it can to things with its custom silicon capabilities that might take others a while to catch up--but catch up they will, as the vendors leapfrog each other for this fairly lucrative market.

The one thing the Cisco 3548 isn’t is cheap. The Arista 7148SX lists for $26,395, while Cisco’s switch starts at $41,000 for the Layer 2 version and runs up to $66,000 for the fully loaded Layer 3 version. Applications go well beyond financial trading, including high-performance computing and private cloud pods.

Art Wittmann is a freelance journalist and writer with 30 years of experience in IT and IT journalism. Wittmann specializes in IT infrastructure, cloud computing and data center issues. Email him at artwittmann@yahoo.com Follow him on twitter @artwittmann

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