810 FCP - System Port | Service Name:fcp-udp

810 is a System Port. Transport Protocol TCP , 810 Service Name fcp-udp, Service Name Description: FCP.

Port	Protocol	Service Name	Description	Source
810	TCP	fcp-udp	FCP	IANA
810	UDP	fcp-udp	FCP Datagram	IANA
810	TCP UDP		Mac OS X RPC-based services, Used by NetInfo, for example	Apple.com
810	UDP	fcp-udp	FCP Datagram	bekkoame
810	TCP	fcp-udp	FCP	bekkoame

Port	Service Name	Description
817		Unassigned
931		Unassigned
1239	nmsd	NMSD
1682	lanyon-lantern	lanyon-lantern
2446	bues-service	bues_service IANA assigned this well-formed service name as a replacement for "bues_service".
2733	signet-ctf	Signet CTF
3071	csd-mgmt-port	ContinuStor Manager Port
3514	must-p2p	MUST Peer to Peer
3580	nati-svrloc	NATI-ServiceLocator
3656	abatjss	ActiveBatch Job Scheduler

A port is an endpoint of communication in an operating system. While the term is also used for hardware devices, in software it is a logical construct that identifies a specific process or a type of service.

Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535);

The Well Known Ports are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term conversations. For the purpose of providing services to unknown callers, a service contact port is defined. This list specifies the port used by the server process as its contact port. The contact port is sometimes called the "well-known port". To the extent possible, these same port assignments are used with the UDP [RFC768]. The range for well-known ports managed by the IANA is 0-1023.
DYNAMIC AND/OR PRIVATE PORTS Registered Ports are those from 1024 through 49151.
The Dynamic and/or Private Ports are those from 49152 through 65535