Perle Systems 5500161-40 Field Definitions

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Port Buffering

The Remote Port Buffering feature allows data received from serial ports on the IOLAN to be sent to

a remote server on the LAN. The remote server, supporting Network File System (NFS), allows

administrators to capture and analyze data and messages from the serial device connected to the

IOLAN serial port.

Remote Port Buffering data can be encrypted or raw and/or time stamped. The data is transmitted to

an NFS server where a unique remote file is created for each serial port using the configured serial

port Name for the file name. If the serial port Name parameter is left blank, the IOLAN will create

unique files using the IOLAN’s Ethernet MAC address and serial port number. It is recommended

that a unique NFS directory and serial port Name be configured if multiple IOLANs use the same

NFS host for Remote Port Buffering.

The filenames will be created on the NFS host with a .ENC extension to indicate data encrypted files

or .DAT for unencrypted files. If the data is encrypted, the Decoder utility application must be run on

the NFS server to convert the encrypted data to a readable file for administrators to analyze. The

Decoder Utility can be found on your installation CDROM or on the Perle website (www.perle.com).

The data that is sent to the remote buffer file is appended to the end of the file (even through IOLAN

reboots), so you will want to create a size limit on th e file on your remote NFS host, to keep the

buffer file size from becoming too large for your system.

Field Definitions

Port buffering displays or logs data received on the IOLAN serial port.

Configure the following param eters:

Enable Local

Buffering Enables/disables local port buffering on the IOLAN.

Default: Disabled

View Port

Buffering String The string used by a a session connected to a serial port to display the port

buffer for that particular serial port.

Data Options: Up to an 8 character string. You can specify control

(unprintable) codes by putting the decim al value in angle brackets < > (for

example, Escape b is <027>b).

Default: ~view

Enable Remote

(NFS) Buffering Enables/disables port buffering on a remote system. When you enable this

option, you have the ability to save the buffered data to a file(s) (one file is

created for each serial port) and/or send it to the Syslog host for viewing on the

Syslog host’s monitor.

Default: Disabled