telnet_multiple_switches_and_vlan.py

''' telnet and create vlan on multiple cisco switches using files and python '''
# Author: Anubhavsingh Sawdagur
# Created Date: 11 Febuary 2019

import telnetlib

USER = "anubhav"
PASSWORD = "cisco"
FILE = open("Networking\\switches.txt")

for LINE in FILE:
    HOST = str(LINE.strip())
    print("Telnet to IP: " + HOST)

    TN = telnetlib.Telnet(HOST, timeout=15)
    # TN.set_debuglevel(1000)

    TN.read_until(b"Username: ")
    TN.write(USER.encode("ascii") + b"\n")
    if PASSWORD:
        TN.read_until(b"Password: ")
        TN.write(PASSWORD.encode("ascii") + b"\n")

    TN.write(b"term len 0\n")  # S1#
    TN.write(b"sh ip int br\n")
    TN.write(b"conf t\n")  # S1(config)#

    for n in range(2, 6):
        VLAN = "interface vlan " + str(n)
        TN.write(VLAN.encode("ascii") + b"\n")   # S1(config-if)#
        TN.write(b"exit\n")  # S1(config)#

        GOTO_VLAN = "vlan " + str(n)
        TN.write(GOTO_VLAN.encode("ascii") + b"\n")  # S1(config-vlan)#

        VLAN_NAME = "name Python_Vlan_" + str(n)
        TN.write(VLAN_NAME.encode("ascii") + b"\n")
        TN.write(b"exit\n")  # S1(config)#
    TN.write(b"exit\n")  # S1#

    # To remove created vlans
    # -----------------------
    # for n in range(2, 6):
    #     VLAN = "no interface vlan " + str(n)  # S1(config)#
    #     TN.write(VLAN.encode("ascii") + b"\n")
    #     GOTO_VLAN = "no vlan " + str(n)
    #     TN.write(GOTO_VLAN.encode("ascii") + b"\n")  # S1(config)#
    # TN.write(b"exit\n")  # S1#
    # -----------------------

    TN.write(b"sh vlan br\n")
    TN.write(b"wr\n")
    TN.write(b"\n")
    TN.write(b"exit\n")

    OUTPUT = TN.read_all().decode('ascii')
    print(OUTPUT)
    TN.close()

FILE.close()