Dev: get_vlans.v1

Hi there, this a basic script that connects to a list of switches, get the vlans, vlans name, interfaces where the vlan is assigned and the total number of vlans.

from netmiko import ConnectHandler

# connect to devices

for n in range(1,5):

  ip = "192.168.234.4{0}".format(n)

  device = {

    'host': ip,

    'username': 'silesio',

    'password': 'cisco',

    'device_type': 'cisco_ios'

  }

  login = ConnectHandler(**device)

   # get device hostname

  hostname = login.send_command('show run | in hostname')

  hostname = hostname.split(' ')

  hostname = hostname[1]

  print('\n*** Connecting to ' f"{hostname}" '***')

  # get the vlans and parse into python as dictionary 

  cmd = login.send_command("show vlan brief", use_textfsm=True)

  for vlan in cmd:

    print(f"{vlan['vlan_id']} {vlan['name']} {vlan['interfaces']}") 

  # get the total of usable vlans

  vlans = [k['vlan_id'] for k in cmd if k.get('vlan_id')]

  total_vlans = len(vlans)-4

  print(f"{hostname}" " total vlans: " f"{total_vlans}" )

And that’s it. 

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