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in.discardd
FMRI svc:/internet/discard:default
FMRI stands for Fault Management Resource Identifier. It is used to identify resources managed by the Fault Manager. See fmd(1M) and smf(5).
The in.discardd service provides the server-side of the discard protocol. This protocol is used for debugging and bandwidth measurement and is available on both TCP and UDP transports through port 9.
The in.discardd service is an inetd(1M) smf(5) delegated service. The in.discardd detects which transport is requested by examining the socket it is passed by the inetd daemon.
The discard service simply throws away any data it receives from the client.
TCP-based service
Once a connection is established, the in.discardd discards any data received. No response is generated. The connection remains open until the client terminates it.
UDP-based service
The in.discardd listens for UDP datagrams. When a datagram is received, the server discards it. No response is sent.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Interface Stability | Evolving |
inetd(1M), attributes(5), smf(5)
RFC 863