Python learning for Network Engineers | Part 21 |Handle device not reachable exceptions in Netmiko

𝗙𝗼𝗿 𝗖𝗼𝗺𝗽𝗹𝗲𝘁𝗲 𝗣𝘆𝘁𝗵𝗼𝗻 𝗙𝗼𝗿 𝗡𝗲𝘁𝘄𝗼𝗿𝗸 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝘀 𝗖𝗼𝘂𝗿𝘀𝗲: 𝗘𝗻𝗿𝗼𝗹𝗹 𝗳𝗼𝗿 𝗯𝗲𝗹𝗼𝘄 𝗨𝗱𝗲𝗺𝘆 𝗖𝗹𝗮𝘀𝘀: 𝟐𝟎𝟐𝟐 𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝑫𝒊𝒔𝒄𝒐𝒖𝒏𝒕𝒆𝒅 𝑹𝒆𝒇𝒆𝒓𝒓𝒂𝒍 𝑳𝒊𝒏𝒌: https://www.udemy.com/course/python-for-network-engineers/?referralCode=35A75AAE1ACA94A15829 This video demonstrates how to handle Device not reachable, Device unauthorized and SSH not enabled scenariors from netmiko import ConnectHandler from netmiko.ssh_exception import NetMikoTimeoutException from paramiko.ssh_exception import SSHException from netmiko.ssh_exception import AuthenticationException IP_LIST = open('15_devices') for IP in IP_LIST: print ('\n'+ IP.strip() + ' \n' ) RTR = { 'ip': IP, 'username': 'admin', 'password': 'admin1', 'device_type': 'cisco_ios', } try: net_connect = ConnectHandler(**RTR) except NetMikoTimeoutException: print ('Device not reachable.') continue except AuthenticationException: print ('Authentication Failure.') continue except SSHException: print ('Make sure SSH is enabled in device.') continue output = net_connect.send_config_from_file(config_file = '16_config') print(output) output = net_connect.send_command('show ip int brief') print(output) #NetmikoTimeoutExceptions #NetmikoCiscoAuthenticationException #NetmikoSSHException