---
name: "ltpadmin"
section: "1"
platform: "linux"
package: "ion"
version: "3.2.1+dfsg-1.1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/ltpadmin"
---

# ltpadmin(1)

ION Licklider Transmission Protocol (LTP) administration interface

## NAME

ltpadmin - ION Licklider Transmission Protocol (LTP) administration interface

## SYNOPSIS

**ltpadmin** \[ *commands\_filename* \| . \]

## DESCRIPTION

**ltpadmin** configures, starts, manages, and stops LTP operations for the local ION node.

It operates in response to LTP configuration commands found in the file *commands\_filename*, if provided; if not, **ltpadmin** prints a simple prompt (:) so that the user may type commands directly into standard input.  If *commands\_filename* is a period (.), the effect is the same as if a command file containing the single command 'x' were passed to **ltpadmin** -- that is, the ION node's *ltpclock* task,  *ltpmeter* tasks, and link service adapter tasks are stopped.

The format of commands for *commands\_filename* can be queried from **ltpadmin** with the 'h' or '?' commands at the prompt.  The commands are documented in [*ltprc*(5)](/ltprc/5.md).

## EXIT STATUS

- "0" Successful completion of LTP administration.

  ## EXAMPLES

- ltpadmin

  Enter interactive LTP configuration command entry mode.

- ltpadmin host1.ltp

  Execute all configuration commands in *host1.ltp*, then terminate immediately.

- ltpadmin .

  Stop all LTP operations on the local node.

## FILES

See [*ltprc*(5)](/ltprc/5.md) for details of the LTP configuration commands.

## ENVIRONMENT

No environment variables apply.

## DIAGNOSTICS

**Note**: all ION administration utilities expect source file input to be lines of ASCII text that are NL-delimited.  If you edit the ltprc file on a Windows machine, be sure to **use dos2unix to convert it to Unix text format** before presenting it to **ltpadmin**.  Otherwise **ltpadmin** will detect syntax errors and will not function satisfactorily.

The following diagnostics may be issued to the logfile ion.log:

- ltpadmin can't attach to ION.

  There is no SDR data store for *ltpadmin* to use.  You should run [*ionadmin*(1)](/ionadmin/1.md) first, to set up an SDR data store for ION.

- Can't open command file...

  The *commands\_filename* specified in the command line doesn't exist.

Various errors that don't cause **ltpadmin** to fail but are noted in the **ion.log** log file may be caused by improperly formatted commands given at the prompt or in the *commands\_filename* file. Please see [*ltprc*(5)](/ltprc/5.md) for details.

## BUGS

Report bugs to \<ion-bugs@korgano.eecs.ohiou.edu\>

## SEE ALSO

[*ltpmeter*(1)](/ltpmeter/1.md), [*ltprc*(5)](/ltprc/5.md)