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We are working on enhancements to the Service Location Protocol (SLP), including mesh-enhancement (mSLP), remote discovery, preference filters, global attributes, and SLP URL. We also use SLP for the Internet telephony gateway location. Here are introductions to SLP and mSLP. This project supported in part by NSF and DARPA MarketNet.

People

• Weibin Zhao, Columbia University
• Henning Schulzrinne, Columbia University
• Erik Guttamn, Sun Microsystems
• Chatschik Bisdikian, IBM
• William Jerome, IBM

• RFCs:
  • Remote Service Discovery in the Service Location Protocol (SLP) via DNS SRV, RFC 3832, July 2004.
  • Mesh-enhanced Service Location Protocol (mSLP), RFC 3528, April 2003.
  • Select and Sort Extensions for the Service Location Protocol (SLP), RFC 3421, November 2002.
• Conference and Journal Papers:
  • Enhancing Service Location Protocol for Efficiency, Scalability and Advanced Discovery, in Journal of Systems and Software, Vol. 75(1-2), pp. 193-204, February 2005.
  • Improving SLP Efficiency and Extendability by Using Global Attributes and Preference Filters in International Conference on Computer Communications and Networks(ICCCN'02), Miami, Florida, October 2002.
  • Selective Anti-entropy in ACM Symposium on Principles of Distributed Computing (PODC'02)(brief announcement), Monterey, California, July 2002.
  • mSLP -- Mesh-enhanced Service Location Protocol, in International Conference on Computer Communications and Networks (ICCCN'00), Las Vegas, Nevada, October 2000.
• Internet Drafts:
  • Enabling Global Service Attributes in the Service Location Protocol, October 2005.
  • Locating IP-to-Public Switched Telephone Network (PSTN) Telephony Gateways via SLP, February 2004.
  • The SLP URL Format, June 2002.

• License: open source, BSD style
• Release mslp-1.1.0.tar: updated on 10/25/05
• Documentation
• Other implementations: OpenSLP and Sun Microsystems

• General: SLP charter, srvloc.sourceforge.net, and SLP at Wikipedia
• RFCs: 2165 (SLPv1), 2608 (SLPv2), 2609 (Template), 2610 (DHCP), 2614 (API), 2926 (LDAP and SLP), 3049 (TN3270E), 3059 (Attribute List extension), 3082 (Notify and Subscribe), 3105 (Finding RSIP), 3111 (SLP for IPv6), 3224 (Vendor extension), 3421 (Select and Sort extensions) 3528 (mSLP), 3822 (Finding FCIP), 3832 (Remote Discovery), and 4018 (Finding iSCSI)
• Registries: Function IDs, Extensions, Templates, and Enterprise Numbers

• Jini
• UPnP
• UDDI
• Zeroconf, Benjour, and DNS Service Discovery (DNS-SD)
• Bluetooth
• DHCP
• GLOBE and Globule
• Networked Appliances (Telcordia)
• Naming Services: INS (MIT), DNS & RealName, and ActiveName
• Directory Services: LDAP, Novell eDirectory, ICANN, IANA, and InterNIC

• NSF
• DARPA/ITO