CS 201: Rethinking the Architectural Roles of Transport Layer Functions, JANARDHAN IYENGAR, Franklin & Marshall College

Rethinking the Architectural Roles of Transport Layer Functions

Janardhan Iyengar

Franklin & Marshall College

Abstract:

Current Internet transports conflate functions driven by underlying network requirements, such as endpoint naming and congestion control, with functions driven by application requirements, such as retransmission and reordering. Dividing these function areas into layers separated by a clean interface addresses several limitations of the Internet’s architecture, enabling network middleboxes such as firewalls, network address translators, and performance enhancing proxies to avoid interfering with end-to-end semantics or security mechanisms. This talk will explore two alternative instantiations of this architectural principle: one in a ground-up redesign of the Internet's transport suite, the other a mere reorganization of existing protocols. The former approach offers efficiency advantages due to synergies in the new design, such as smaller headers and fewer round-trips to initiate a connection, while the latter is easier to deploy quickly.

Bio: 

Janardhan Iyengar is an Assistant Professor at Franklin & Marshall College, a small liberal arts college in Lancaster, Pennsylvania, and is currently on sabbatical at Apple, an oddly-named small enterprise in Cupertino, California.  His research interests generally hover around transport protocols, Internet architecture, and Internet access in economically developing regions (the other 6 billion). He received his PhD in Computer Science from the University of Delaware in 2006 for his work on multipath transport, and he has since been hooked to the idea that meaningful teaching and meaningful research can go together.  For more: http://www.fandm.edu/jiyengar/.

Hosted by Prof Lixia Zhang

DATE:  Thursday, April 12

** Refreshments at 3:45 pm, Speaker at 4:15pm **

TIME:  4:15 – 5:45 P.M.

PLACE: 3400 Boelter Hall