Hi Sean:
Not all of it, alas, has been published (some of the work is for corporate
clients). However, on my web page (www.ir.bbn.com/~craig) is a pointer
to our paper on a 50 Gbps router, which was one of the earliest multigigabit
routers built. Other activities in this vein but not published include an
ATM switch implemented on a PC (c. 1992), and much more recent work on route
lookups, and various alterations to the packet forwarding path (e.g. for
efficiency and packet tracing).
Craig