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System Administration Guide: Network Services
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Part I Network Services Topics

1.  Network Service (Overview)

2.  Managing Web Cache Servers

3.  Time-Related Services

Part II Accessing Network File Systems Topics

4.  Managing Network File Systems (Overview)

5.  Network File System Administration (Tasks)

6.  Accessing Network File Systems (Reference)

Part III SLP Topics

7.  SLP (Overview)

8.  Planning and Enabling SLP (Tasks)

9.  Administering SLP (Tasks)

Configuring SLP Properties

SLP Configuration File: Basic Elements

Configuration Properties

Comment Lines and Notations

How to Change Your SLP Configuration

Modifying DA Advertising and Discovery Frequency

Limiting UAs and SAs to Statically Configured DAs

How to Limit UAs and SAs to Statically Configured DAs

Configuring DA Discovery for Dial-up Networks

How to Configure DA Discovery for Dial-up Networks

Configuring the DA Heartbeat for Frequent Partitions

How to Configure DA Heartbeat for Frequent Partitions

Relieving Network Congestion

Accommodating Different Network Media, Topologies, or Configurations

Reducing SA Reregistrations

How to Reduce SA Reregistrations

Configuring the Multicast Time-to-Live Property

How to Configure the Multicast Time-to-Live Property

Configuring the Packet Size

How to Configure the Packet Size

Configuring Broadcast-Only Routing

How to Configure Broadcast-Only Routing

Modifying Timeouts on SLP Discovery Requests

Changing Default Timeouts

How to Change Default Timeouts

Configuring the Random-Wait Bound

How to Configure the Random-Wait Bound

Deploying Scopes

When to Configure Scopes

Considerations When Configuring Scopes

How to Configure Scopes

Deploying DAs

Why Deploy an SLP DA?

When to Deploy DAs

How to Deploy DAs

Where to Place DAs

Placing Multiple DAs for Load Balancing

SLP and Multihoming

Multihoming Configuration for SLP

When to Configure for Nonrouted, Multiple Network Interfaces

Configuring Nonrouted, Multiple Network Interfaces (Task Map)

Configuring the net.slp.interfaces Property

How to Configure the net.slp.interfaces Property

Proxy Advertising on Multihomed Hosts

DA Placement and Scope Name Assignment

Considerations When Configuring for Nonrouted, Multiple Network Interfaces

10.  Incorporating Legacy Services

11.  SLP (Reference)

Part IV Mail Services Topics

12.  Mail Services (Overview)

13.  Mail Services (Tasks)

14.  Mail Services (Reference)

Part V Serial Networking Topics

15.  Solaris PPP 4.0 (Overview)

16.  Planning for the PPP Link (Tasks)

17.  Setting Up a Dial-up PPP Link (Tasks)

18.  Setting Up a Leased-Line PPP Link (Tasks)

19.  Setting Up PPP Authentication (Tasks)

20.  Setting Up a PPPoE Tunnel (Tasks)

21.  Fixing Common PPP Problems (Tasks)

22.  Solaris PPP 4.0 (Reference)

23.  Migrating From Asynchronous Solaris PPP to Solaris PPP 4.0 (Tasks)

24.  UUCP (Overview)

25.  Administering UUCP (Tasks)

26.  UUCP (Reference)

Part VI Working With Remote Systems Topics

27.  Working With Remote Systems (Overview)

28.  Administering the FTP Server (Tasks)

29.  Accessing Remote Systems (Tasks)

Part VII Monitoring Network Services Topics

30.  Monitoring Network Performance (Tasks)



Configuring SLP Properties

SLP configuration properties control network interactions, SLP agent characteristics, status, and logging. In most situations, the default configuration of these properties requires no modification. However, you can use the procedures in this chapter when the network medium or topology changes and to achieve the following goals:

You can edit the SLP configuration file, /etc/inet/slp.conf, to perform operations such as those shown in the following table.

Table 9-1 SLP Configuration Operations

Specify whether slpd should act as a DA server. SA server is the default.
Set the net.slpisDA property to True.
Set timing for DA multicast messages.
Set the net.slp.DAHeartBeat property to control how often a DA multicasts an unsolicited DA advertisement.
Enable DA logging to monitor network traffic.
Set the net.slp.traceDATraffic property to True.

SLP Configuration File: Basic Elements

The /etc/inet/slp.conf file defines and activates all SLP activity each time you restart the SLP daemon. The configuration file consists of the following elements:

Configuration Properties

All of the basic SLP properties, such as net.slp.isDA and net.slp.DAHeartBeat, are named in the following format.


SLP behavior is defined by the value of a property or a combination of properties in the slp.conf file. Properties are structured as key-value pairs in the SLP configuration file. As shown in the following example, a key-value pair consists of a property name and an associated setting.

<property name>=<value>

The key for each property is the property name. The value sets the numeric (distance or time), true/false state, or string value parameters for the property. Property values consist of one of the following data types:

If the value defined is not allowed, the default value for that property name is used. In addition, an error message is logged using syslog.

Comment Lines and Notations

You can add comments to the slp.conf file that describe the nature and function of the line. Comment lines are optional in the file, but can be useful for administration.

Note - Settings in the configuration file are case insensitive. For more information, refer to: Guttman, Erik, James Kempf, and Charles Perkins, “Service Templates and service: scheme,” RFC 2609 from the Internet Engineering Task Force (IETF). []

How to Change Your SLP Configuration

Use this procedure to change the property settings in your SLP configuration file. SLP– enabled client or service software also can alter the SLP configuration by using the SLP API. This API is documented in “An API for Service Location,” RFC 2614 from the Internet Engineering Task Force (IETF). []

  1. Become superuser or assume an equivalent role.

    Roles contain authorizations and privileged commands. For more information about roles, see Configuring RBAC (Task Map) in System Administration Guide: Security Services.

  2. Stop slpd and all SLP activity on the host.
    # svcadm disable network/slp
  3. Back up the default /etc/inet/slp.conf file before you change the configuration settings.
  4. Edit the property settings in the /etc/inet/slp.conf file as necessary.

    Refer to Configuration Properties for general information about the SLP property settings. See the sections that follow this procedure for examples of different scenarios in which you might change the slp.conf properties. See slp.conf(4).

  5. Save your changes and close the file.
  6. Restart slpd to activate your changes.
    # svcadm enable network/slp

    Note - The SLP daemon obtains information from the configuration file when you stop or start slpd.

Example 9-1 Setting up slpd to Operate as a DA Server

You can change the SA server default to enable slpd to operate as a DA server by setting the net.slp.isDA property to True in the slpd.conf file.


In each area, various properties control different aspects of the configuration. The following sections describe different scenarios in which you might change the default property settings that are used in SLP configuration.