CASP - Cross-Application Signaling Protocol

Document Type Expired Internet-Draft (individual)
Author Henning Schulzrinne 
Last updated 2003-03-07
Stream (None)
Intended RFC status (None)
Expired & archived
pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


CASP is a modular potocol for establishing network control state along a data path between two nodes communicating on the Internet. The signalling problem addressed by CASP is the same as the overall problem being addressed by the NSIS activities. The CASP framework is defined as a modular protocol, which includes a general purpose messaging layer (M-layer), which supports a number of client layers for particular signalling applications (e.g. QoS, MIDCOM). In addition there is distinct, special purpose client component for next-peer discovery.


Henning Schulzrinne (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)