Registered · Cross-platform

2377 Docker Swarm management

TCP Yes
UDP Reserved
SCTP —
DCCP —

What it is

Swarm cluster management plane.

When / why

Between Swarm manager nodes.

Protocol status detail

TransportStatusMeaning
TCP Yes Assigned by IANA and standardized, specified, or widely used on this port.
UDP Reserved Reserved by IANA, generally to prevent collisions after a withdrawn assignment.
SCTP — Not applicable for this transport.
DCCP — Not applicable for this transport.
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Port range

Registered (1024–49151). Assigned by IANA on request; usable without elevated privileges on most systems.

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