Administrator Guide

Table 2. Pin Assignments Between the Console and a DTE Terminal Server

Console Port RJ-45 to RJ-45 Rollover

Cable

RJ-45 to RJ-45 Rollover

Cable

RJ-45 to DB-9 Adapter Terminal Server Device

Signal RJ-45 Pinout RJ-45 Pinout DB-9 Pin Signal

RTS 1 8 8 CTS

NC 2 7 6 DSR

TxD 3 6 2 RxD

GND 4 5 5 GND

GND 5 4 5 GND

RxD 6 3 3 TxD

NC 7 2 4 DTR

CTS 8 1 7 RTS

Accessing the CLI Interface and Running Scripts

Using SSH

In addition to the capability to access a device using a console connection or a Telnet session, you can also use SSH for secure, protected

communication with the device. You can open an SSH session and run commands or script files. This method of connectivity is supported

with S4810, S4048–ON, S3048–ON, S4820T, and Z9000 switches and provides a reliable, safe communication mechanism.

Entering CLI commands Using an SSH Connection

You can run CLI commands by entering any one of the following syntax to connect to a switch using the preconfigured user credentials

using SSH:

ssh username@hostname <CLI Command>

echo <CLI Command> | ssh admin@hostname

The SSH server transmits the terminal commands to the CLI shell and the results are displayed on the screen non-interactively.

Executing Local CLI Scripts Using an SSH Connection

You can execute CLI commands by entering a CLI script in one of the following ways:

ssh username@hostname <CLIscript.file>

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 files:

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

Getting Started