TCP/UDP Port Finder

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Database updated - March 30, 2016

Search results for "3689"

Port: 3689/TCP
3689/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • daap
    Digital Audio Access Protocol (iTunes)
    IANA
  •  
    Digital Audio Access Protocol (DAAP) - used by Apple iTunes and AirPort Express (Official)
    WIKI
  • daap
    Digital Audio Access Protocol
    Bekkoame
  • daap
    Digital Audio Access Protocol (DAAP). iTunes Music Sharing, AirPlay
    Apple
Port: 3689/UDP
3689/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • daap
    Digital Audio Access Protocol (iTunes)
    IANA
  • daap
    Digital Audio Access Protocol
    Bekkoame

About TCP/UDP ports

TCP port 3689 uses the Transmission Control Protocol. TCP is one of the main protocols in TCP/IP networks. TCP is a connection-oriented protocol, it requires handshaking to set up end-to-end communications. Only when a connection is set up user's data can be sent bi-directionally over the connection.
Attention! TCP guarantees delivery of data packets on port 3689 in the same order in which they were sent. Guaranteed communication over TCP port 3689 is the main difference between TCP and UDP. UDP port 3689 would not have guaranteed communication as TCP.

UDP on port 3689 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 3689 thinks that error checking and correction is not necessary or performed in the application, avoiding the overhead of such processing at the network interface level.
UDP (User Datagram Protocol) is a minimal message-oriented Transport Layer protocol (protocol is documented in IETF RFC 768).
Application examples that often use UDP: voice over IP (VoIP), streaming media and real-time multiplayer games. Many web applications use UDP, e.g. the Domain Name System (DNS), the Routing Information Protocol (RIP), the Dynamic Host Configuration Protocol (DHCP), the Simple Network Management Protocol (SNMP).
TCP vs UDP - TCP: reliable, ordered, heavyweight, streaming; UDP - unreliable, not ordered, lightweight, datagrams.
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