How to continue the script even after 1 host fails from the list

[sagarCCIE]

Hello Kirk, Team
I have list of 10 devices and if 1 from center fails, Netmiko scripts stop.
Any workaround to skip the failed one and keep continuing till the end.
Please assist

[ktbyers]

@sagarCCIE Usually, you just add a try/except statement and keep going if one device fails.

You could then add some Python logging indicating information about the failing device.

Regards,

Kirk

[sagarCCIE]

Thank you.
Can you point me to a readymade script which you have in your mind for me to refer.

[Microbuse]

Hi.
I changed in the base_connection.py line 957
from raise NetmikoTimeoutException(msg) to print(NetmikoTimeoutException(msg)) and added only raise om next line.
The it only logs the error connection and move to next device. in line

[Microbuse]

[ktbyers]

In Netmiko 4.x (currently develop branch), I would do the following:

import logging
from netmiko import ConnLogOnly
from devices import cisco3, cisco4, arista1, arista2

log_level = logging.INFO
log_file = "my_output.log"

for device in (cisco3, cisco4, arista1, arista2):
    net_connect = ConnLogOnly(log_file=log_file, log_level=log_level, **device)
    if net_connect:
        print(net_connect.find_prompt())

ConnLogOnly will cause a device to not create exceptions on connection failures--instead these will get logged to the logging file that you specify.