Dr. Henning Schulzrinne from Columbia University will give a talk tomorrow
on "A new look at Internet Signaling".

Dr. Schulzrinne is a distinguished researcher in the Computer Science
community.  He is an active researcher in the area of Internet real-time
and multimedia services and protocols, modeling and analysis of
computer-communication networks, operating systems and network security.
He is the main developer of RTP, the Real-time Transport Protocol used
in multicast applications.  He is also a chief architect in the
development of Voice-over-IP, and the author of many RFCs and internet
drafts.


Speaker: Henning Schulzrinne, professor at Columbia University
Place  : Hardymon Building, room 210
Time   : Thursday, December 12, 2:30-3:30pm

		"A new look at Internet Signaling"
			Henning Schulzrinne

Recently, there has been renewed interest in Internet signaling, i.e.,
the establishment of state in network entities along the data path. Such
signaling can be used for the classical resource reservation
application, but can also be used to discover network properties,
configure networks, deal with firewalls and Network Address Translators
(NATs) and deposit active network code along the data path. In
cooperation with Siemens, we are designing a new extensible signaling
protocol, CASP, that attempts to provide a more general-purpose service
than, say, RSVP.

Time permitting, I'll also briefly discuss some on-going work on
Internet reliability for voice communications. In short, we show how far
the Internet is from the ideal of "5 nines" reliability.