Unless you’ve been living under a rock for the last two weeks, you know that the FIFA World Cup is in full swing. Stakes are higher than ever as we move into the semi-finals with more and more people tuning in to cheer on their favorite futbol teams. In fact, FIFA just released a media release yesterday about how this year’s 2014 FIFA World Cup™ has set new records for streaming data traffic around the world. My colleague Ido blogged about IWAN helping with the bandwidth overload caused by the FIFA World Cup last week, so let’s dive deeper and talk about video and high density.
There is no denying it: your employees and customers are streaming video. While the volume of that streaming dramatically peaks around game times during the World Cup, it should be no surprise that today, mobile applications, largely video, are increasing mobile traffic across networks. That’s straight forward: apps + video = bandwidth drain. Combine that with the fact that people are touting multiple devices--think a laptop and a smartphone, maybe a tablet, too. This means high density--lots of clients and devices on a single network. These circumstances trigger three potential yellow cards to cross an IT person’s mind – let’s see how we can avoid them.
YELLOW CARD #1: Rich Media Optimization
As an end-user, the common expectation is that I should get the same crisp, clear, rich media or video experience across all platforms—I don’t care if it’s my phone, my tablet or my laptop: make it high definition. This is harder said than done.
It is not easy to provide the same rich media experience across wired and wireless devices. Traffic from wireless devices has to travel all the way back to the controller in a data center and then back to an access switch before reaching its destination. It’s called the hairpin effect. The result is that video over Wi-Fi could look grainy. That won’t do for the current generation of high definition junkies. Read More »
Tags: App, application, AVC, brasil, brazil, device, fifa, high density, IT, media, mobile, online, streaming, video, visibility, wi-fi, wifi, wireless, wlan, world cup
Northern Kentucky University is among the fastest growing universities in Kentucky. It hosts over 15,000 students with about 13,000 undergraduate and 2,000 graduate students. The goal of the wireless program at NKU is to provide secure, robust and ubiquitous wireless access throughout the campus, both indoors and outdoors. This ensures that students always stay connected and feel at home. The classrooms are equipped with smart technology to ensure that the teachers can benefit from technology when collaborating with students. The IT team has blanketed the libraries, the classrooms, the dorm-rooms as well as the outdoor areas with Wi-Fi. In the previous blog in 2012, we described how the Cisco 7.5 release allows networks to recover with no client re-authentication in the rare event of your primarily wireless LAN controller goes down.
At a Glance:
Located in: the Highland Heights Kentucky
Number of students: 15,000 of which about 2000 stay in residence halls
Number of teachers/staff: 2000
# WLAN clients: Approximately 8500 concurrent clients
Access-Point Model and Units: 1200 units of AP models including AP702W, 3502, 3602, 3702, 1550 and a few older Access Points which are being phased out
Controller Model and Units: 2 Pairs of WiSM2 operating in 22.214.171.124
Switch Models: Various models 2960, 3650, 3850, 3750X and 6500
Prime Infrastructure: 1.4.2
Mobility Services Engine: 7.6
Deployment Details: We talked to Christopher Johnson, the Senior Infrastructure Systems Analyst II at Northern Kentucky University to capture some of his thoughts around their choice of this solution and the associated benefits. Read More »
Tags: 11ac, 802.11, 802.11ac, access point, AP, application, AVC, bandwidth, CCIE, client, control, controller, device, gigabit, graduate, kentucky, LAN, mobile, mobility, nku, prime, professor, re-authentication, smart, staff, student, switch, system, teacher, technology, university, video, visibility, wi-fi, wifi, wireless, WiSM2, wlan
A 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
Max. Concurrent Connected Wi-Fi Devices
There was a peak of 14216 concurrently connected device at SF this year.
Read More »
Tags: #CLUS, 10G, 802.11, access point, analytic, antenna, AP, application, Application Visibility and Control, attendee, AVC, catalyst, Cisco, cisco live, client, client composition, concurrent, Conference, control, controller, deploy, design, device, Gbps, Geek, GHz, HDX, High Availability, high density, infrastructure, IPv6, LAN, laptop, legacy data rate, mobile, moscone, mse, network, networkers, peak, peak throughput, phone, san francisco, show, switch, TBps, TByte, throughput, traffic, unique user, user, visibility, wifi, wireless, wlan
Everybody’s talking about 802.11ac, but we’ve sensed some confusion for next steps as far as how CIO’s and IT organizations should be approaching the new standard.
Should I move to 802.11ac?
You’re probably thinking: Chris, you’re a leader at Cisco, of course you want me to migrate to 802.11ac. That, my friends, is where you are wrong. There is no simple answer to the question of whether you should move your network to 802.11ac. Here’s my simple rule of thumb:
There is no premium for 802.11ac from Cisco. If you are deploying new Access Points’s today, you should be buying 802.11ac. If you’re not buying, you are probably satisfied with your network and how it will handle the growth of more and more clients associating with your network and the bandwidth demands that come with that client demand. If you feel you have a plan to handle this demand, then you are one of the few that can pass on 802.11ac.
That said, there is a strong ramp up for Cisco 802.11ac products in the market, the AP3700 is the fastest ramping access point in our history and we have yet to see if the AP2700 will claim that crown in the coming months. ABI Research estimates that currently 50% of new device introductions are 802.11ac enabled, a statistic expected to increase to 75% by the end of 2015. This is enough proof of the overwhelming interest in adding the benefits of 11ac to networks. Let’s take a step back and consider the basics of why people are moving to the new standard.
Today, everything is about getting what we want, when we want it. Instant gratification. It’s not just the millennials—we’ve all been conditioned to expect things within seconds. Could you imagine the days pre-Internet if you had the capability for on-demand movies? Read More »
Tags: 11ac, 11n, 802.11, 802.11ac, 802.11n, access point, AP, bandwidth, battery life, CIO, Cisco, client, consumer, dell'oro, deployment, device, education, End User, GHz, gigabit, HD, HDX, high density, IEEE, IT, laptop, macbook, mbps, Mhz, migrate, migration, network, networking, optimization, performance, retail, rf, Scalability, scalable, smartphone, spectral optimization, spectrum, standard, technology, university, visibility, wi-fi, wifi, wireless, wlan
The University of Nevada, Las Vegas (UNLV), founded in 1957, is located in the heart of showbiz industry in Las Vegas. The school offers higher education programs ranging from business, engineering, fine arts and music, and science, and professional schools such as dental medicine and law.
The school’s mascot, Hey Reb, was recently featured on Hulu’s “Behind the Mask,” and you may recognize the Southern Gym during the dance scene between Elvis Presley and Ann-Margret Olsson in the movie Viva Las Vegas.
With over 24,000 unique WLAN users per day, 1.1 gigabytes of throughput per second, and more than 50 wireless access locations across campus providing WLAN coverage, this educational institute demands a massive Wi-Fi network.
In the previous blog, we highlighted some of the Bonjour enhancements of the 7.5 software release and the deployment of Bonjour at St. Margaret’s Episcopal School, a K-12 school. In this blog, we will describe details about UNLVs WLAN deployment, how they use Bonjour services, and give you an insight into rapid pace of innovation necessary to support this technology in the education arena. Read More »
Tags: 11ac, access point, administrator, aireOS, AP, App, Apple, application, AVC, Bonjour, Cisco, cleanair, control, controller, deployment, EFT, EFT code, freeradius, granularity, High Availability, ip, location, network, openldap, policy, release, service, SSID, standby, Stateful Switch Over, sub-second, technology, UNLV, user group, vegas, visibility, VLAN, webgui, wi-fi, wifi, wlan