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Who’s deploying Multi-Hop FCoE? – Part II

Continuing the blog series (Part-I) on the production deployment designs and the real-world benefits of Multi-Hop FCoE infrastructure, this blog features University of Siegen, based in Germany.

siegenBefore delving into the details, a bit of background -- The University of Siegen is a modern educational institution with a strong international profile. Its 17,500 students and 1700 staff are based in eight locations around the town of Siegen in Germany, although more than 11 percent of students come from other countries. The BYOD, e-learning initiatives and other research applications were putting the university’s IT environment under pressure. So, the University was looking to optimize IT services for educational and operational efficiency and as well to introduce the latest technology for future-proofing their Data Center. 

Using the Cisco “wire-once, enable anywhere” design philosophy, the University connected the old storage environment, which is based on Fibre Channel, with the new FCoE domain. Cisco UCS server is connected to the Director-Class Cisco Nexus 7000 platform, which in turn is connected via Multi-hop FCoE to Cisco MDS 9000 SAN Director. The newer FCoE Storage array is connected directly to Nexus 7000 for the End-to-End FCoE connectivity.

Siegen-Dep

The benefits to using Cisco Unified Fabric infrastructure were quite significant  Read More »

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Working Smarter: The Paradigm Shift in Business Collaboration

For the last few years I have had a growing conviction that my workplace collaboration tools were fundamentally broken and needed to be reinvented. So, last year when I was given the opportunity to join Cisco as the leader of their collaboration business I jumped at it. The way we work has changed dramatically over the last twenty years. The expectation that you can work from anywhere, at any time, has become the norm. Change is always hard within IT, but, as you read in my last post, it is the companies that embrace these new models of work who will benefit from a more innovative, efficient, and happier workforce.

Let’s face it, our primary collaboration tools were invented over twenty years ago when “working” looked very much like what you see in the popular TV show Mad Men – what I call the “Don Draper era.” A time when you went into the office, sat at your desk, had a physical landline, and a desktop PC loaded with legacy business tools; an environment that assumed we would always be in the office during normal business hours and behind the walled garden of IT. Fast forward to 2013 and look around, the way we work today is fundamentally different than the way we worked twenty years ago, yet many of our business IT systems and tools have been slow to catch up. In frustration, many employees are turning to the collaboration tools they use in their personal lives such as Dropbox, FaceTime, Gmail, Evernote, and Facebook to get their work done.

The rise of cloud and mobility have driven an acceleration in consumer technology so quickly that today, ironically, Read More »

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The One and Only Cisco UCS Manager

I am often asked by customers why UCS has been so successful in such a short amount of time. My response is always the same in that it comes down to two things – 1) Cisco and our partners’ ability to understand and execute against customer needs and 2) A fundamental difference in the underlying architecture.

You may know that Cisco invented UCS service profiles and built the entire system around the notion of hardware state abstraction. Cisco’s approach has been so successful because every element of the system was designed from the beginning to have its configuration set through software, without any licensing requirements. Whether customers are running bare-metal, virtualized, or any combination therein, Cisco UCS service profiles have revolutionized computing and have challenged competitors to try and replicate the simplicity and increased productivity that UCS Manager policies and templates provide. It’s no secret that Cisco UCS Manager has revolutionized the way customers deploy and manage servers, but here are a few things about UCS Manager that you may not be aware of.

Did you know that Cisco UCS Manager is embedded software running within the Fabric Interconnects in a highly available clustered configuration? This is an important distinction from traditional architectures as Cisco UCS Manager is a fully redundant management engine right out of the box the moment the system receives power, without special clustering software or additional licensing fees. Read More »

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Using DNS RPZ to Block Malicious DNS Requests

October 2, 2013 at 10:00 am PST

After delivering several presentations at Cisco Live and Cisco Connect this year, I received a few questions regarding DNS Response Policy Zones (RPZ) and how can they be used to block DNS resolution to known malicious hosts and sites. I decided to write this short post to explain what it is and provide several pointers.

DNS RPZ is a technology developed by ISC available since Bind version 9.8. Network administrators can use DNS RPZ to essentially stop malware-infected hosts from reaching their command and control (C&C) servers by blocking DNS resolution to known malicious hosts and sites. This effectively turns a recursive DNS server into a DNS firewall. In fact, many people refer to DNS RPZ as the “DNS Firewall.” Various ISPs are testing and implementing this to provide additional protection to their customers.

Note: DNS RPZ will block DNS resolution, machines connecting to the C&C via IP address will not be blocked.

The following figure provides an overview of how DNS RPZ works.

RPZ-overview1

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Cisco Quantum SON Suite Wins Best Mobile Product at Leading Lights Award

By Shailesh Shukla, VP & GM, SWAG Global, CiscoShailesh Shukla

Overview
The surging demand for data, and the continued growth of Smartphones consumption forces mobile service providers expand their network in order to provide Quality of Experience and Quality of service to their customers. As a result their network becomes more complex and difficult to manage. Leading Lights Awards has recognized the Cisco Quantum SON Suite as the leading solution and “Best Mobile Product” for 2013, to automatically manage the already complex network from a single point, without extra equipment and guaranting KPI’s?

What is the Cisco Quantum SON? Read More »

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