Perle Systems 5500208-41 Data-loggin, Initial, Initiate-connection, Internet-address, Keepalive

Line Commands

hotkey-prefix

The prefix that a user types to lock a line or redraw the Menu. The default value is hex

01, which corresponds to Ctrl-a(^a) (hex value 02 would be Ctrl-b (^b), etc.):

z^a l—(Lowercase L) Locks the line until the user unlocks it. The user is prompted for a password (any password, excluding spaces) and locks the line. Next, the user must retype the password to unlock the line.

z^r—When you switch from a session back to the Menu, the screen may not be redrawn correctly. If this happens, use this command to redraw it properly.

You can use the Hotkey Prefix key to lock a line only when the Line Lock parameter is On.

data-loggin

When enabled, serial data will be buffered if the TCP connection is lost. When the TCP connection is re-established, the buffered serial data will be sent to its destination (this option is not available when Monitor DSR, Monitor DCD, or Multihost is enabled).

The data buffer is 4K for desktop models and 32K for rack mount models. If the data buffer is filled, incoming serial data will overwrite the oldest data.

The default is off.

idle-timer

Enter a time period, in seconds, for which the Idle Timer will run. Use this timer to close a connection because of inactivity. When the Idle Timer expires, the IOLAN will end the connection. The maximum value is 4294967 seconds (about 49 days). The default value of 0 (zero) means the Idle Timer will not expire, so the connection is permanently open.

initial

Specifies the initial interface a user navigates when logging into the line; either the Menu or a prompt for the CLI. The default is CLI.

initiate-connection

Initiates a Telnet connection to the specified host when any data is received by the serial port or when the specified character is received by the serial port (direct Telnet only).

internet-address

Used with reverse sessions, users can access serial devices connected to the IOLAN by the specified Internet Address (or host name that can be resolved by a DNS). You must reboot the IOLAN for the Internet Address to take affect (the kill line option does not apply to this parameter).

keepalive

Enables a per-connection TCP keepalive feature. After the configured number of seconds, the connection will send a gratuitous ACK to the network peer, thus either ensuring the connection stays active OR causing a dropped connection condition to be recognized.

This parameter needs to be used in conjunction with server parameter, monitor-connection-every. The interval determines how long the IOLAN will wait during inactivity before "testing" the connection. It should be noted that if a network connection is accidentally dropped, it can take as long as the specified interval before anyone can reconnect to the serial port.

line-name

Provide a name for the line so it can be easily identified.

41