Building the Mobile Internet (Networking Technology)
admin | Jan 19, 2012 | 2 comments
Building the Mobile Internet (Networking Technology)
The complete guide to technologies and protocols for delivering seamless mobile Internet experiences In Building the MobileInternet, three leading mobility architects and implementers from Cisco present complete foundational knowledge about tomorrow’s mobile Internet. The authors cover everything from market trends and user expectations to the latest technical approaches for making the Internet “mobile by design.” Writing for senior technology decision-makers and network design
List Price: $ 40.00
Price: $ 21.71
Filed Under: Mobile Technology
VERY VERY HIGHLY RECOMMENDED!! CHECK IT OUT NOW!!,
Do you need to increase your understanding of how mobility can be supported in IP networking? If you do, then this book is for you! Authors Mark Grayson, Kevin Shatzkamer and Klaas Wierenga have done an outstanding job of writing a book that examines the different techniques for building mobility into the Internet.
Authors Grayson, Shatzkamer and Wierenga, begin by defining the mobility market in terms of device proliferation, consumption trends and radio-specific challenges in scaling for massive adoption of the mobile Internet. They also explain the protocols and layers that make up the Internet architecture; as well as, the fundamental problem with that architecture in supporting mobility. The authors continue by describing how users and devices are authenticated for using the network and its applications; in particular, those that are not operated by the operator that the user has a subscription with. Then, they explain the benefits of solving mobility at the data link layer. Next, they provide an overview of a number of network layer solutions for delivering seamless mobility and session continuity. The authors also describe the advantages of integrating mobility functionality into transport/session layer. They continue by describing how the application layer can be enhanced with additional mobility functionality, thus allowing advanced mobility use cases to be supported, including the ability to move media sessions between different devices. Finally, the authors provide an overview of the approaches fro redesigning the Internet architecture to allow better mobility; as well as, a discussion of the pros and cons of some typical examples of those approaches.
This most excellent book takes a look at mobility from a broad perspective of use cases and examines how mobility solutions are in fact pervasive across all layers of the protocol stack. Perhaps more importantly, the book provides details of how mobility functionality has been added to these layers and describes use cases that demonstrate the different approaches to building the mobile Internet.
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|v6 algorithms seem simpler than v4,
The problems tackled here tend to be harder than traditional routing scenarios on the Internet, where in the latter the nodes have a fixed address. The inclusion of mobility, principally expressed as in hardware like smartphones or laptops, is trickier. While the book mainly discusses solutions to this, another theme is interwoven throughout the text- the use of IPv6 addresses. As explained early in the narrative, the rise of IPv6 is due to the very success of IPv4, which is rapidly leading to the exhaustion of v4 addresses. Though it would greatly simplify the text for it to focus just on v6, v4 addresses are still in the majority and will be used heavily for the foreseeable future.
Speaking of special cases, in a different context, WiFi is studied here, because it is commonly used as a nomadic connection to the Internet. It stands apart from LTE [Long Term Evolution]. The latter is for cellphones. The mobile handling in LTE differs from WiFi in part because while both are nomadic, a cellphone user is more mobile, so switching between basestations is common, while far less so for WiFi laptop users.
The text talks about mobility at different levels of the Internet protocol stack. The handling at each level is quite specific to that level, and the book lets you appreciate the implications.
The use of v6 is also seen as simpler than v4. The complexity of some of the v4 algorithms may be seen as ingenious, and they are, but there is a kludginess reflecting that v4 was first devised long before mobility was an issue. So the mobile v4 algorithms of the book are a retrofit. In contrast, the v6 algorithms are simpler in part because when v6 was first devised, nomadic needs were already anticipated. But for you as a network engineer, you probably cannot avoid knowing the v4 sections of the book.
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