Requirements for Signaling Protocols, April 2004
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This document defines requirements for signaling across different network environments, such as across administrative and/or technology domains. Signaling is mainly considered for Quality of Service (Qos) such as the Resource Reservation Protocol (RSVP). However, in recent years, several other applications of signaling have been defined. For example, signaling for label distribution in Multiprotocol Label Switching (MPLS) or signaling to middleboxes. To achieve wide applicability of the requirements, the starting point is a diverse set of scenarios/use cases concerning various types of networks and application interactions. This document presents the assumptions before listing the requirements. The requirements are grouped according to areas such as architecture and design goals, signaling flows, layering, performance, flexibility, security, and mobility. This memo provides information for the Internet community.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.