---
name: "tsctp"
section: "1"
platform: "linux"
package: "tsctp"
version: "0.8.1-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/tsctp"
---

# tsctp(1)

SCTP Test Tool

## NAME

**tsctp** – SCTP Test Tool

## SYNOPSIS

**tsctp** \[**-a** *indication*\] \[**-A** *type*\] \[**-D**\] \[**-f** *fragmentation\_point*\] \[**-l** *buffersize*\] \[**-L** *local\_address*\] \[**-n** *number\_of\_messages*\] \[**-p** *port*\] \[**-R** *rcvbufsize*\] \[**-S** *sndbufsize*\] \[**-t** *timetolive*\] \[**-T** *runtime*\] \[**-u**\] \[**-U** *udp\_port*\] \[**-v**\] \[**-V**\] \[**-4**\] \[**-6**\] \[remote\_address\]

## DESCRIPTION

**tsctp** is an SCTP test tool. It can be used to make basic tests with the SCTP protocol. For the tool to work, the kernel needs to support SCTP, i.e. sockets with protocol IPPROTO\_SCTP.

- Linux: echo sctp \>/etc/modules-load.d/sctp.conf

  Then, reboot to load the module. Note: Ensure that the SCTP module is not blacklisted (e.g. /etc/modprobe.d/sctp-blacklist.conf in Fedora Linux)!

- FreeBSD: echo 'sctp\_load="YES"' \>\>/boot/loader.conf

  Then, reboot to load the module.

## ARGUMENTS

The following arguments may be provided:

- **-a** *indication*

  Set adaptation layer indication.

- **-A** *type*

  Set chunk type to authenticate .

- **-D**

  Turns Nagle off.

- **-f** *fragmentation\_point*

  Set fragmentation point.

- **-l** *buffersize*

  Set size of send/receive buffer. For sending messages, this means the message size!

- **-L** *local\_address*

  Set local address.

- **-n** *number\_of\_messages*

  Set number of messages to be sent (0 means infinite)/received.

- **-p** *port*

  Set port number.

- **-R** *rcvbufsize*

  Set socket recv buffer.

- **-S** *sndbufsize*

  Set socket send buffer.

- **-t** *timetolive*

  Set time to live for messages.

- **-T** *runtime*

  Set time to send messages.

- **-u**

  Set use of unordered messages.

- **-U** *udp\_port*

  Use UDP encapsulation with given port.

- **-v**

  Enable verbose output.

- **-V**

  Enable very verbose output.

- **-4**

  Use IPv4 only.

- **-6**

  Use IPv6 only.

- remote\_address

  If a remote address is given, the client mode is used. Then, tsctp connects the socket to the given remote address. Otherwise, without given remote address, the server mode is used. Then, tsctp listens for incoming connections.

## EXAMPLES

- tsctp -l :: -l 0.0.0.0 -p 1234

  Server mode: bind to all IPv4 and IPv6 addresses, listen on port 1234.

- tsctp -l :: -l 0.0.0.0 -p 1234 -n 10 -l 1000 127.0.0.1

  Client mode: bind to all IPv4 and IPv6 addresses, connect to localhost (127.0.0.1) on port 1234, send 10 messages of 1000 bytes each.

- tsctp -l :: -l 0.0.0.0 -p 1234 -n 0 -T 10 -l 4096 127.0.0.1

  Client mode: bind to all IPv4 and IPv6 addresses, connect to localhost (127.0.0.1) on port 1234, send unlimited number of messages of 4096 bytes each, stop after 10 s.

## AUTHORS

Michael Tüxen, Robin Seggelmann, Irene Rüngeler, Thomas Dreibholz\
 http://www.sctp.de\
 mailto://tuexen@fh-muenster.de\