Network
Working Group W. Zhao
Request
for Comments: 3832 H. Schulzrinne
Category:
Experimental
Columbia University
E.
Guttman
Sun
Microsystems
C.
Bisdikian
W. Jerome
IBM
July
2004
Remote Service Discovery
in the
Service Location Protocol (SLP)
via DNS SRV
Status
of this Memo
This memo defines an Experimental Protocol
for the Internet
community.
It does not specify an Internet standard of any kind.
Discussion and suggestions for improvement
are requested.
Distribution of this memo is unlimited.
Copyright
Notice
Copyright (C) The Internet Society (2004).
Abstract
Remote service discovery refers to
discovering desired services in
given remote (i.e., non-local) DNS
domains. This document describes
remote service discovery in the Service
Location Protocol (SLP) via
DNS SRV.
It defines the DNS SRV Resource Records for SLP Directory
Agent services, discusses various issues in
using SLP and DNS SRV
together for remote service discovery, and
gives the steps for
discovering desired services in remote DNS
domains.
1. Introduction
This document describes remote service
discovery in the Service
Location Protocol (SLP) [RFC2608] via DNS
SRV [RFC2782]. We consider
remote service discovery as discovering
desired services in given
remote DNS domains, and local service
discovery as discovering
desired services within the local
administrative domain.
SLP provides a scalable framework for local
service discovery and
selection.
In SLP, User Agents (UAs) discover desired services in
the local administrative domain by querying
all Service Agents (SAs)
via multicast or querying a Directory Agent
(DA) via unicast. To
Zhao,
et al. Experimental [Page 1]
RFC
3832 Remote Discovery in SLP
via DNS SRV July 2004
query a DA using unicast, a UA needs...