SLPD(8) Maintenance Procedures SLPD(8)


slpd - Service Location Protocol Daemon


/usr/lib/inet/slpd [-f configuration-file]


The slpd daemon provides common server functionality for the Service
Location Protocol ("SLP") versions 1 and 2, as defined by IETF in RFC
2165 and RFC 2608. SLP provides a scalable framework for the discovery
and selection of network services.

slpd provides the following framework services:

Directory Agent

This service automatically caches service advertisements from service
agents to provide them to user agents, and makes directory agent
advertisements of its services. This service is optional. slpd does
not provide directory agent service by default. Directory agents are
not databases, and they do not need to be maintained.

Service Agent Server

All service agents on the local host register and deregister with
this server. This service responds to all requests for services, and
forwards registrations to directory agents. By default, slpd is a
service agent server.

Passive Directory Agent Discovery

This service listens for directory agent advertisements and maintains
a table of active directory agents. When a user agent wishes to
discover a directory agent, it can simply query slpd, obviating the
need to perform discovery by means of multicast. By default, slpd
performs this service.

Proxy Registration

This service can act as a proxy service agent for services that
cannot register themselves. slpd reads the proxy registration file
for information on services it is to proxy. By default, no services
are registered by proxy.

All configuration options are available from the configuration file. slpd
reads its configuration file upon startup.

Stop and start the slpd daemon using svcadm(8). Use the command svcadm
enable network/slp to start the slpd daemon. Use the command svcadm
disable network/slp to stop it.

The file /etc/inet/slp.conf must exist before the slp service can start
the daemon. Only the example file /etc/inet/slp.conf.example is present
by default. To enable SLP, copy /etc/inet/slp.conf.example to


The following options are supported:

-f configuration-file
Specify an alternate configuration file


Example 1: Stopping the slpd daemon

The following command stops the slpd daemon:

example# svcadm disable network/slp

Example 2: Restarting the slpd daemon

The following command restarts the slpd daemon:

example# svcadm restart network/slp


The default configuration file

The proxy registration file


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

|CSI | Enabled |
|Interface Stability | Evolving |


svcs(1), slp_api(3SLP), slp(4P), slp.conf(5), slpd.reg(5), attributes(7),
smf(7), svcadm(8)

Guttman, E., Perkins, C., Veizades, J., and Day, M., RFC 2608, Service
Location Protocol, Version 2, The Internet Society, June 1999.


The slpd service is managed by the service management facility, smf(7),
under the service identifier:


Administrative actions on this service, such as enabling, disabling, or
requesting restart, can be performed using svcadm(8). The service's
status can be queried using the svcs(1) command.

August 23, 2004 SLPD(8)