IN.CHARGEND(8) Maintenance Commands and Procedures IN.CHARGEND(8)

NAME

in.chargend - UDP or TCP character generator service daemon

SYNOPSIS

in.chargend


FMRI svc:/internet/chargen:default

DESCRIPTION

FMRI stands for Fault Management Resource Identifier. It is used to
identify resources managed by the Fault Manager. See fmd(8) and
smf(7).


The in.chargend service provides the server-side of the character-
generator protocol. This protocol is used for debugging and bandwidth
measurement and is available on both TCP and UDP transports, through
port 19.


The in.chargend service is an inetd(8) smf(7) delegated service. The
in.chargend detects which transport is requested by examining the
socket it is passed by the inetd daemon.

TCP-based service
Once a connection is established, the
in.chargend generates a stream of data. Any data
received is discarded. The server generates data
until the client program terminates the
connection. Note that the data flow is limited
by TCP flow control mechanisms.


UDP-based service
The in.chargend listens for UDP datagrams. When
a datagram is received, the server generates a
UDP datagram in response containing a random
number of ASCII characters (ranging from 0 to
512 characters). Any received data is ignored.


The in.chargend data consists of a pattern of 72 character lines
containing the printable, 7-bit ASCII characters. Each line is
terminated with a carriage return and a line feed character.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Evolving |
+--------------------+-----------------+

SEE ALSO

attributes(7), smf(7), inetd(8)


RFC 864

August 23, 2004 IN.CHARGEND(8)