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The Network After 25 Years of Cisco Live!

#clus1A lot can change in 25 years. At the first Cisco Live (then known as Networkers conferences) in 1989, 200 geeks gathered for the inaugural event. Fast forward to three weeks ago, when we welcomed a whopping 25,000 attendees into the arms of our namesake, beautiful San Francisco.

We heard there was some interest in how the network performed at the show, so I wanted to share some of the interesting statistics about the network at Cisco Live! I shudder at the thought of the ancient network from 25 years ago. So here we go:

Wi-Fi Client Devices

This year we saw 30,705 unique devices, with 7000 in the theater for John Chambers’ keynote.

# of Unique Clients

# of Sessions

# of Unique Users

# of Unique APs

Avg Users per AP

30705

1396239

30705

859

33.64

Max. Concurrent Connected Wi-Fi Devices

There was a peak of 14216 concurrently connected device at SF this year.

clients2 Read More »

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TU Darmstadt Rolls Out Cisco Unified Access to Prepare for 802.11ac

May 27, 2014 at 11:31 am PST

Technische Universität Darmstadt, usually known as TU Darmstadt is a research university based in Germany. It was founded in 1877 and over the last 137 years has grown to be among the largest and most prestigious public universities in Germany serving over 25,000 students per year. It is the alma-mater to many world-wide leaders from Nobel prize winners, a CEO of a fortune 500 company, a president of a country and multiple World Robocup champions.

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No wonder, they have a reference from Albert Einstein!

tud2

In 2009 TU Darmstadt embraced BYOD with the 5508 Series Controller managing the 1140 802.11n Access Points. Recently we talked to Thomas Vogel, the Head of Network Group and Andreas Liebe, the Network Services Manager who have over 15 years of experience managing WLAN environments. In this blog, we will describe some of the details of WLAN deployments using the 3850 Series Switch and the 5760 Series Wireless LAN Controller to address the new requirements in the school environment. Read More »

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RetailMeNot Leverages Cisco and Plixer for WLAN Optimization

April 1, 2014 at 9:23 am PST

Founded in 2007, RetailMeNot.com is the largest digital coupon site in the US.  They help hundreds of thousands of customers save money when shopping online. They are headquartered in Austin Texas, in the hip “Live Music Capital of the World”.  Since the company went public in 2013, the company has doubled the number of employees from 250 to over 500.

In previous blogs, I have covered what is AVC, SuccessEHS and how Plixer’s Scrutinizer accepts Netflow, sFlow and IPFIX exports. This post will cover how these key products are combined by RetailMeNot in their WLAN deployments to optimize and support this fast growing company.

Recently Michael Patterson, the Founder and Product Manager at Plixer, Matthew St. Jean the Marketing Manager at Plixer and I had an opportunity to talk to Tim Tyndall, the Lead Network Engineer at RetailMeNot.  Tim shared with us the highlights of the wireless LAN deployment and explained how they use Cisco Application Visibility and Control and Plixer’s Scrutinizer to stay in control of how their WLAN is being utilized.

Tim described the environment and culture that has become a huge part of the company’s success.  RetailMeNot  provides hip new offices for its employees with open work spaces and other awesome perks.

The Cisco powered wireless network supports this initiative. In fact, nearly all network connectivity is wireless. He said that employees are issued a laptop by the company and many carry in their own smartphones and tablets as well; Most of those devices being from Apple.

retail1

Employees can roam freely with reliable service that spans the company’s five floors. Even during large meetings where access density increases dramatically, service continues without any interruptions and the performance metrics they can obtain using NetFlow is exceptional and reinforce that the traffic is optimized. Read More »

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Enabling the Business Value of Cloud Through Intelligent Infrastructure

IWAN ImageThe advent of the many clouds has now become a reality. Enterprises of all sizes and segments are embracing cloud solutions, whether private internal cloud, Virtual Private Cloud, Public Cloud, or some Hybrid. The number of workloads as well as cloud traffic  are expected to grow exponentially in the next 5 years.

The shift to the many clouds has significant impact on the role of IT.  IT has to reinvent itself to be able to keep control as applications are increasingly moving to cloud infrastructures.

In particular, there are two very strong trends that will require IT to increasingly position itself as a Broker of Services, and evolve from a more traditional role of being an infrastructure provider.
First, line of businesses intend to address some of their IT needs directly by purchasing cloud-based IT services. Read More »

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IWAN Wed: What is Intelligent WAN?

Imagine that you have several branch offices that are using WAN demanding applications like Salesforce.com, Office 365, Virtual Desktops, Video Teleconferencing and more.  You are using those expensive MPLS/VPN WAN connections as you don’t want to risk it and probably because when you started to work there it was already there and … why mess around with something that is working, right?  Normally I would agree with that but when IT budgets are shrinking and the network needs to step up and support those business critical apps, there is no other way but to innovate.

At any given time your network carries information from LAN to WAN and vice versa, some is important and some is less important. In many cases as a network admin you don’t have the visibility to distinguish between them, so what do you do when those critical apps are starting to act up? Usually the answer will be to buy more WAN bandwidth and that will give the apps and the user experience behind them some breathing space. But all you’re doing is buying time.  Buying time never solves the problem because you will need to treat the symptoms again in a few weeks or months.

However, you can solve the problem and not just treat the symptoms using Cisco Intelligent WAN or IWAN for short.

Read More »

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