In late 2004, I was asked the same question three times in as many months by three different customers: “Why can’t you connect the switch into here and run PPPoE over this pseudowire?” After explaining the issue, I went home that night wondering why there wasn’t a book that explains these sorts of topics. Similar books were either a few years old or focused more on individual technologies, rather than taking an architectural approach to designing next-generation broadband networks. So, with the help of two other authors, I decided to fill the gap in the market.

The idea of writing a book seems like a great idea at first. Setting off at such a leisurely pace in early 2006 was, with the benefit of 20/20 hindsight, a bit like entering ...

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