SCTP Administrator's Guide

perform tracing and logging operations. For more information about the nettl
command, see “The nettl Command” (page 24).
Start and Stop script: The Start and Stop script enables you to start and stop the sctpd
application. For more information about the Start and Stop script, see “Start and Stop
Script” (page 25).
The sctpd application: The sctpd application enables you to manage domain name
resolution requests, to support the SCTP hostname parameter. It automatically configures
the interfaces into SCTP, whenever an interface is configured. The sctpd application
interacts with the SCTP module through the command library, to manage and monitor
network operations. For more information about the sctpd application, see “The
sctpd Application” (page 24).
The following sections discuss the SCTP utilities in detail.
The ndd Command
This section discusses the ndd command. It also describes the SCTP tunable parameters
that the ndd command supports.
The ndd command enables you to examine and modify the tunable parameters that
affect networking behavior and operations. You can change the value of a tunable using
the /etc/rc.config.d/nddconf file. Configuring an SCTP variable is similar to
configuring a TCP or a UDP variable. This command enables you to enter arguments
for TCP ,UDP, or SCTP parameters on the command line.
SCTP Parameters Supported by the ndd Command
This section lists the SCTP parameters supported by ndd. It also lists the maximum,
minimum, and default value for each of the supported SCTP parameters.
Table 1-1 lists the SCTP parameters supported by the ndd command.
Table 1-1 SCTP Parameters Supported by the ndd Command
DescriptionParameter
Queries the SCTP module for global statistical
information and displays the retrieved data.
sctp_status
Specifies the default number of times an INIT
message is retransmitted, before SCTP considers a
peer unreachable. The maximum number of INIT
messages sent is one value greater than the specified
sctp_max_init_retr value. (The first message is not
treated as a retransmission.)
sctp_max_init_retr
Specifies the default number of times DATA,
SHUTDOWN, or HEARTBEAT message is
retransmitted, before SCTP considers the peer
unreachable, and treats the association as aborted.
sctp_max_assoc_retr
18 Introduction