Server Commands

Set Port-Buffering

Description

Configures port buffering.

User Level

Admin

Syntax

set port-buffering [duplicate-nfs-to-syslog onoff]

 

[keys-stroke-buffering onoff] [mode offlocalremoteboth]

 

[nfs-directory <text>] [nfs-encryption onoff]

 

[nfs-host <config_host>] [time-stamp onoff]

 

[view-port-buffer-string <text>]

Options

duplicate-nfs-to-syslog

 

When enabled, buffered data is sent to the syslog host to be viewed on the host’s

 

monitor. The default is off.

 

key-stroke-buffering

 

When enabled, key strokes that are sent from the network host to the serial device on

 

the IOLAN’s serial port are buffered. The default is off.

 

mode

 

Specifies where the port buffer log is kept, either Off, Local, Remote, or Both. If

 

Remote or Both is selected, you must specify an NFS server location for the port buffer

 

log.

 

nfs-directory

 

The directory and/or subdirectories where the Remote Port Buffering files will be

 

created. This field is used when Port Buffering Mode is set to Remote or Both. For

 

multiple IOLANs using the same NFS host, it is recommended that each IOLAN have

 

its own unique directory to house the remote port log files. The default is

 

/device_server/portlogs.

 

nfs-encryption

 

Determines if the data sent to the NFS host is sent encrypted or in the clear across the

 

LAN. The default is set of Off.

 

NOTE: When NFS encryption is enabled, the Decoder utility software is required to be

 

installed on the NFS host for decrypting the data to a readable format. The Decoder

 

utility software can be found on the installation CD-ROM and on the www.perle.com

 

website.

 

nfs-host

 

The NFS host that the IOLAN will use for its Remote Port Buffering feature. The

 

IOLAN will open a file on the NFS host for each reverse SSH or reverse Telnet line,

 

and send any port data to be written to those files. The default is None. This field is

 

required when Mode is set to Remote or Both.

 

time-stamp

 

Enable/disable time stamping of the port buffer data.

 

view-port-buffer-string

 

The string (up to 8 characters) used by a a session connected to a serial port to display

 

the port buffer for that particular serial port. You can specify control (unprintable) codes

 

by putting the decimal value in angle brackets < > (for example, Escape b is <027>b).

 

The default is ~view.

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IOLAN SDS/SCS/STS/MDC CLI Reference Guide, Version 3.7

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Perle Systems SDS, MDC manual Set Port-Buffering

SDS, MDC specifications

Perle Systems is a leading provider of connectivity solutions, renowned for its robustness and reliability in networking hardware. Among its expansive product offerings, the MDC (Multiport Device Converter) and SDS (Serial Device Server) stand out as pivotal solutions for industries requiring seamless data communication and device management.

The Perle MDC serves as a powerful multi-port device converter, providing the ability to connect multiple serial devices to a computer network without needing a separate connection for each device. This is particularly useful in environments with limited computing resources or high device density, such as railways, manufacturing plants, or remote field operations. It is designed to convert serial communication, which is commonly used in legacy devices, into Ethernet/IP or TCP/IP protocols, ensuring that older devices can integrate into modern networks.

Main features of the MDC include its robust design for industrial environments, support for a variety of serial protocols, and multiple device connections. It supports data rates of up to 115200 bps and provides easy monitoring and configuration via a web-based interface. Additionally, the MDC incorporates advanced security features including SSL and SSH encryption, ensuring data integrity and protection against unauthorized access.

On the other hand, the Perle SDS model exemplifies advanced serial device hosting capabilities, allowing users to connect Ethernet networks to serial devices. It acts as a bridge, enabling remote devices to be configured and managed over IP networks. The SDS series is known for its versatility, supporting a range of serial communication protocols, including RS-232, RS-422, and RS-485, making it suitable for various applications such as point-of-sale systems, industrial automation, and remote monitoring.

The SDS boasts several characteristics that enhance its functionality, such as automatic device discovery, real-time monitoring, and local or cloud-based management options. Its feature set also includes traffic management capabilities, allowing the optimization of device communication by controlling the flow of data, which is critical for applications requiring high reliability and low latency.

Both the MDC and SDS benefit from a strong emphasis on ease of deployment and management. They support a range of network topologies, facilitating seamless integration into existing infrastructures. Furthermore, these devices are backed by Perle Systems' reputation for customer support and a commitment to ongoing innovation, ensuring that organizations can rely on these solutions for future growth and technological advancement.