Service discovery

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Service discovery protocols are network protocols which allow automatic detection of devices and services offered by these devices on a computer network.

There are many service discovery protocols, including:

DNS Service Discovery ([www.dns-sd.org]) (DNS-SD)
Service Location Protocol (SLP)
Simple Service Discovery Protocol (SSDP) as used in Universal Plug and Play (UPnP)
UDDI for Webservices
Jini for Java objects.
Bluetooth Service Discovery Protocol (SDP)
Salutation
Jabber Service Discovery ([JEP-0030])

Service Discovery Protocol (SDP) should not be confused with Session Description Protocol (SDP), which is intended for describing multimedia sessions for the purposes of session announcement, session invitation, and other forms of multimedia session initiation.

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