6640

TCP port 6640 is registered for ovsdb, the Open vSwitch Database management protocol. That identifies the protocol associated with the port, not what any particular host runs or whether it is reachable. The supplied evidence does not establish whether this service belongs on the public internet, so its recommended exposure is Unknown.

RFC 7047 describes OVSDB as a JSON-based management protocol for programmatic access to the configuration database of an Open vSwitch instance. Its examples include managing bridges, ports, tunnels, queues, and related settings. The RFC says implementations should operate directly over TCP and refers to a TCP port in its IANA considerations.

Because the protocol supports management and configuration operations, operators should decide access based on their deployment and restrict access to intended management clients. The supplied evidence does not establish prevalence, typical deployment locations, unofficial uses, or malware associations.

Registered service

ovsdb is assigned to TCP port 6640 for the Open vSwitch Database protocol. [Confirmed]

Host status

Registration does not show whether a particular host runs or exposes OVSDB. [Unknown]

Recommended exposure

Unknown; the evidence identifies a management protocol but does not establish its intended audience or public reachability for a deployment.

IANA service name

ovsdb [Confirmed] — https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.csv

Protocol purpose

Management access to the Open vSwitch configuration database

Registered description

Open vSwitch Database protocol [Confirmed] — https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.csv

Wire protocol

JSON-RPC 1.0 using JSON; implementations should operate directly over TCP [Confirmed] — https://www.rfc-editor.org/rfc/rfc7047.txt