Simple Service Discovery Protocol/1.0, Operation without an Arbiter, itīs an IETF Internet standard.

The Simple Service Discovery Protocol (SSDP) provides a mechanism where by network clients, with little or no static configuration, can discover network services. SSDP accomplishes this by providing for multicast discovery support as well as server based notification and discovery routing.

External links

http://www.ietf.org/internet-drafts/draft-cai-ssdp-v1-03.txt