Black Box 16 port, 24 port manual Send Break Option, 177

OEMmode 8 also enables a per-connection keepalive TCP keepalive feature - after approx 3 minutes of network connection idle time, 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 recognised by the reverse raw service.

Without OEM mode 8 set the software continues to work as before.

Applications using OEM mode 8 need to be aware that there may be some considerable delay between a network disconnection and the port being available for the next connection attempt - this is to allow any data sent on prior connections to be transmitted out of the serial port. Application network retry logic needs to accommodate this feature.

Bit Value Option

410 Send Break Option

When set a port will allow the sending of a break signal through to attached device. This can be used in the Sun Server environment when the administrator needs to take the Sun Server to the OBP mode (Open Boot Prompt)

The number entered into the OEM_mode field should be the sum of the required options values.

ie. to just disable the routed process, enter 4, or to use the customised login prompt, and not prompt for password if a password has not been set, enter 3 (1+2)

Black Box Console Server user guide 177