Service discovery

Service discovery is the process of automatically detecting devices and services on a computer network. This reduces the need for manual configuration by users and administrators. A service discovery protocol (SDP) is a network protocol that helps accomplish service discovery. Service discovery aims to reduce the configuration efforts required by users and administrators. Service discovery requires a common language to allow software agents to make use of one another's services without the need for continuous user intervention. There are many service discovery protocols, including: Bluetooth Service Discovery Protocol (SDP) DNS Service Discovery (DNS-SD), a component of zero-configuration networking DNS, as used for example in Kubernetes Dynamic Host Configuration Protocol (DHCP) Internet Storage Name Service (iSNS) Jini for Java objects. Lightweight Service Discovery (LSD), for mobile ad hoc networks Link Layer Discovery Protocol (LLDP) standards-based neighbor discovery protocol similar to vendor-specific protocols which find each other by advertising to vendor-specific broadcast addresses (versus all-1's), such Cabletron (Enterasys) and Cisco Discovery Protocol (both referred to as CDP but different formats). Local Peer Discovery, or Local Service Discovery Multicast Source Discovery Protocol (MSDP), usually used for unicast exchange of multicast source information between anycast Rendez-Vous Points (RPs) to service mcast clients. Service Location Protocol (SLP) Session Announcement Protocol (SAP) used to discover RTP sessions Simple Service Discovery Protocol (SSDP), a component of Universal Plug and Play (UPnP) Universal Description Discovery and Integration (UDDI) for web services Web Proxy Autodiscovery Protocol (WPAD) WS-Discovery (Web Services Dynamic Discovery) XMPP Service Discovery (XEP-0030) XRDS (eXtensible Resource Descriptor Sequence) used by XRI, OpenID, OAuth, etc.