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Cisco Battery Control

We are all witnessing the continued proliferation of mobile devices on our networks. This device explosion has led to an increase in wireless service discovery and announcements protocols like Bonjour, DLNA (Digital Living Network Alliance), and UPnP  (Universal Plug and Play). For example, Bonjour locates devices such as printers, other computers, and the services that those devices offer on a local network using multicast Domain Name System (mDNS) service records. Bonjour is built-in with Apple’s operating system including iOS and available on Windows as a common plugin while DLNA and UPnP are built in with Android and Windows operating system respectively.

The usage of these protocols comes with a big price: an increase in Multicast traffic because they are all inherently sent as a broadcast transmissions in Wi-Fi networks.

But why is an increase in Multicast traffic bad for users?

The answer is simple: multicast traffic increases mobile device battery consumption by forcing the device host processor to wake-up more often than required.

Have you ever wondered a drop in battery percentage while your mobile device is sitting idle of hours in your pocket? If yes, then you are probably on a network with a high percentage of multicast traffic emanating from every mobile device that is part of it.

So how can we save battery drop taxes on our mobile device without losing the ability to support these protocols? Read More »

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Always-On Mobile Experience with Wi-Fi

August 16, 2012 at 12:53 pm PST

Importance of High Availability:  If you are reading this blog, you likely own 2-5 Wi-Fi-capable devices: laptops, mobile phones, or tablets. From employees to students, from doctors to guests, the common theme is that everyone now uses wireless as a preferred mode of access.

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