Administrator Guide

14 Python Scripting for Dell Networking N-Series | Version 1.0.1

3.2 Example 2: Applying Python scripts for execution at reload

This example shows how to configure a Python script to execute each time an N-Series switch reloads. This

particular script copies the startup configuration to a TFTP server upon each reboot of the switch.

For this script to work the switch must have access to a TFTP server and the switch’s configuration must

include a username/password and OOB IP address.

This example demonstrates the following three areas:

i. Applying a Python script to be run upon reloading of the switch

ii. Performing management tasks, such as backing up the switch configuration or updating firmware

using Python scripts

iii. Provides the framework for applying any CLI command in a Python script

Save the commands below into a file using a script editor, then compress the file into a .tgz or .tar.gz format

(as discussed on page 8

Note: There is a limit of 16 characters for script filenames, including the extension. This limitation also

applies to the compressed (.tgz or .tar.gz) file containing the script.

#!/usr/bin/env python

#load this script using the start-on-boot parameter in

#order to back up the switch each time the switch reloads

import telnetlib

import os

import re

import time

import string

import sys

HOST = '127.0.0.1'

PORT = 23

LOGIN_STRING = "Login:"

PASSWORD_STRING = "Password:"

TERMINAL_LEN_ZERO = "terminal length 0\n"

TERMINAL_MONITOR = "terminal monitor\n"

ENABLE_STRING = "enable\n"

CONFIG_STRING = "configure\n"

USERNAME = 'admin'

PASSWORD = 'password'

ENABLE_PASSWORD = ''

TIMEOUT = 3

def do_terminal_settings(tn):