The wireless world is going through rapid changes. 802.11ac, the fifth generation of WiFi, is poised for accelerated deployment which will dramatically change the user experience with more bandwidth, more speed and a higher number of concurrent client connections. In fact, nearly a quarter of all new access points in the enterprise are now 802.11ac, as suggested in a December 2014 Infonetics WLAN market report. Read More »
At CiscoLive Milan this year, we’re going to be doing something a little different with Engineers Unplugged.
Traditionally, Engineers Unplugged has been this awesome video series featuring two speakers, a whiteboard, and great Data Center discussions. It also included drawing a unicorn. This year, we’re opening it up to topics including branch routers, campus switching, mobility, and (potentially) some IoT folks. Basically, we’ll cover everything in Data Center, Mobility (including Meraki… oh yeah!), Enterprise Networks, and Internet of Things for those of you who follow our naming silos.
What this means for you: If you’re going to CiscoLive Milan, you should sign up to join in on the Engineers Unplugged fun. Or, let me know about pairings you’d like to see. Read More »
Guest post from Lorenz Jakober
Video growth is overwhelming the enterprise network
We have all been there. At work trying to watch the live company all-hands video, or the latest training, or perhaps even the latest YouTube video. But all we end up with are pixelated videos that take forever to start and constantly re-buffer. The workplace video experience can be abysmal if the WAN is not ready. Most of us will avoid a painful experience like that. Or, if we need to watch the content, suffer through it and spend extra time re-playing it until we can get the message. Talk about engaging employees and improving productivity! In all likelihood, at the same time, the IT team has been watching their network choke on all the additional video traffic. And as we all know we are just at the beginning of the video growth curve with HD everywhere, 4K, “engaging video training”, etc. Cisco, for example, forecasts that by 2018 IP video will represent 79 percent of all traffic globally.
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Our 2013 IT Impact Survey highlighted the importance of collaboration between business leaders and IT as trends like BYOD, data center consolidation and Cloud applications put more pressure on the network. Why collaborate? The survey highlighted that 34% of application roll outs over the prior 12 months were delayed because of not enough budget. You would think that if applications were a priority IT would be given sufficient budget to make sure the network was ready to handle the extra traffic. Unfortunately, according to Nemertes, most organizations’ WAN budgets will remain flat or decline in 2015, meaning that adding bandwidth is often not an option for IT. So how can you do more with less?
Network customers have always bought networks for one and only one reason: to run their applications over them. Yet for most of that time, those networks have been largely oblivious to the composition of the network traffic they carried. Traditional network tools could tell you whether your network was having a lot of errors, or whether a given link or interface was congested, but they couldn’t tell you what was congesting your network, beyond the limited granularity of a few well-known ports. Finding out that you’ve got a lot of HTTP or HTTPS is not very helpful in finding out whether you’re swamped by personal traffic that needs to be controlled, or by legitimate business traffic that requires an increase in effective bandwidth.