GIST: General Internet Signalling Transport (RFC5971)
Original Publication Date: 2010-Oct-01
Included in the Prior Art Database: 2010-Oct-07
Internet Society Requests For Comment (RFCs)
H. Schulzrinne: AUTHOR [+2]
Signalling involves the manipulation of state held in network elements. 'Manipulation' could mean setting up, modifying, and tearing down state; or it could simply mean the monitoring of state that is managed by other mechanisms. This specification concentrates mainly on path-coupled signalling, controlling resources on network elements that are located on the path taken by a particular data flow, possibly including but not limited to the flow endpoints. Examples of state management include network resource reservation, firewall configuration, and state used in active networking; examples of state monitoring are the discovery of instantaneous path properties, such as available bandwidth or cumulative queuing delay. Each of these different uses of signalling is referred to as a signalling application.
Internet Engineering Task Force (IETF) H. Schulzrinne Request for Comments: 5971 Columbia U. Category: Experimental R. Hancock ISSN: 2070-1721 RMR October 2010
GIST: General Internet Signalling Transport
This document specifies protocol stacks for the routing and transport of per-flow signalling messages along the path taken by that flow through the network. The design uses existing transport and security protocols under a common messaging layer, the General Internet Signalling Transport (GIST), which provides a common service for diverse signalling applications. GIST does not handle signalling application state itself, but manages its own internal state and the configuration of the underlying transport and security protocols to enable the transfer of messages in both directions along the flow path. The combination of GIST and the lower layer transport and security protocols provides a solution for the base protocol component of the "Next Steps in Signalling" (NSIS) framework.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for examination, experimental implementation, and evaluation.
This document defines an Experimental Protocol for the Internet community. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc5971.
Schulzrinne & Hancock Experimental [Page 1]
RFC 5971 GIST October 2010
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