Administrator Guide

cat < CLIscript.file > | ssh admin@hostname

The script is run and the actions contained in the script are performed.

Following are the points to remember, when you are trying to establish an SSH session to the device to run commands or script les:

• There is an upper limit of 10 concurrent sessions in SSH. Therefore, you might expect a failure in executing SSH-related scripts.

• To avoid denial of service (DoS) attacks, a rate-limit of 10 concurrent sessions per minute in SSH is devised. Therefore, you might

experience a failure in executing SSH-related scripts when multiple short SSH commands are executed.

• If you issue an interactive command in the SSH session, the behavior may not really be interactive.

• In some cases, when you use an SSH session, when certain show commands such as show tech-support produce large volumes

of output, sometimes few characters from the output display are truncated and not displayed. This may cause one of the commands to

fail for syntax error. In such cases, if you add few newline characters before the failed command, the output displays completely.

Execution of commands on CLI over SSH does not notice the errors that have occurred while executing the command. As a result, you

cannot identify, whether a command has failed to be processed. The console output though is redirected back over SSH.

Default Conguration

Although a version of Dell Networking OS is pre-loaded onto the system, the system is not congured when you power up the system rst

time (except for the default hostname, which is Dell). You must congure the system using the CLI.

Accessing the USB-B Console Port

When you connect the USB-B port, it becomes the primary connection and, when the system is connected, it sends all messages to the

USB-B drive.

The terminal settings are the same for the USB-B port and the console port.

1 Power on the PC (Dell Networking recommends using the XP operating system).

2 Connect the USB-A end of cable into an available USB port on the PC.

3 Connect the USB-B end of cable into the USB-B console port on the S5000.

4 Power on the S5000.

5 Install the necessary USB device drivers (you need an internet connection). For assistance, contact Dell Networking Technical

Support.

6 Open your terminal software emulation program to access the S5000.

7 Set the terminal connection settings.

• 9600 baud rate

• No parity

• 8 data bits

• 1 stop bit

• No ow control

The command line interface (CLI) prompt appears (Dell>_) when you are connected to the S5000.

NOTE

: Only one of the console ports can be active at a time; by default, the USB console takes priority over the RJ-45 console.

When a USB host (PC) is plugged into the USB console port, the hardware automatically switches over to use the USB console.

When the USB cable is removed or the PC deactivates the USB connection, the hardware automatically switches to the RJ-45

console interface.

Booting Process

After you set up the S5000 as described in the installation procedure in the S5000 Getting Started Guide, the switch boots up.

The following example shows an example of the completed boot process.

Getting Started