Banner and Cisco IOS fail when cmd_verify=True

[chriseizus]

I'm having following code to push cisco ios banner to the device.
After upgrade to 3.0, it no longer works. It works fine when switch back to 2.4.2

Exception: <class 'netmiko.ssh_exception.NetmikoTimeoutException'>: Timed-out reading channel, data not available.

I guess it is due to the new expect mechanism in send_config_set since when configuring multi line banner, the device_name# won't be returned yet until the last line of the banner applied.

Here is the code, please advise any solution.

ios_device = {
'device_type': 'cisco_ios',
'ip': "192.168.0.1",
'username': "admin",
'password': "cisco",
'secret': "cisco"
}

net_connect = None

net_connect = ConnectHandler(**ios_device)

banner = [
"banner login ^",
"This is login banner",
"^"
]

net_connect.enable() # I'm using priviledge level 15 so enable is not really an issue
net_connect.send_config_set(banner)

[ktbyers]

You can ignore my earlier comment, it was incorrect and I deleted it.

Let me re-test it.

[ktbyers]

Okay, I reproduced the issue.

You can disable the cmd_verify behavior by doing:

net_connect.send_config_set(banner, cmd_verify=False)

I will need to figure out what to do here...

[chriseizus]

Nice for the prompt test. Will stay tuned for the resolving. Thanks

[ktbyers]

I wouldn't stay tuned as it might take me a while to fix. I.E. use the fix stated above.

Leave this issue open, however, so I can track the issue you referenced.

[chriseizus]

Ok, any caveat of using cmd verify false? Still a reliable push? Or I should be only dealing with banner using this?

[ktbyers]

It basically just falls back to the Netmiko send_config_set mode that existed prior to Netmiko 3.X.X.

[mkorn2021]

The most evident you are having a low-speed connection between you and your device. Consider setting a pause between commands that you send to device

[chriseizus]

The most evident you are having a low-speed connection between you and your device. Consider setting a pause between commands that you send to device

This has been validated by ktbyers as a bug.
Just so you know, it's nothing to do with connection speed. I'm testing in my lab. the swtich is beside me.

[ktbyers]

Should be fixed here:

#2558

Netmiko will auto disable cmd_verify for banner configuration commands.