Support for Huawei S5735-L24P4X-A1

[mathieumd]

It looks like sometimes, Napalm cannot connect to Huawei S5735-L24P4X-A1:

napalm --user readonly --vendor huawei_vrp --optional_args conn_timeout=20 10.0.0.101 call get_lldp_neighbors_detail
Enter password:
2024-10-22 14:36:43,367 - napalm - ERROR - method - Failed:
Pattern not detected: 'Info:\\ The\\ configuration\\ takes\\ effect\\ on\\ the\\ current\\ user\\ terminal\\ interface\\ only\\.' in output.

Things you might try to fix this:
1. Explicitly set your pattern using the expect_string argument.
2. Increase the read_timeout to a larger value.

You can also look at the Netmiko session_log or debug log for more information.



================= Traceback =================

Traceback (most recent call last):
  File "/opt/netbox-4.1.3/venv/bin/napalm", line 8, in <module>
    sys.exit(main())
  File "/opt/netbox-4.1.3/venv/lib/python3.10/site-packages/napalm/base/clitools/cl_napalm.py", line 308, in main
    run_tests(args)
  File "/opt/netbox-4.1.3/venv/lib/python3.10/site-packages/napalm/base/clitools/cl_napalm.py", line 291, in run_tests
    call_getter(device, args.method, **method_kwargs)
  File "/opt/netbox-4.1.3/venv/lib/python3.10/site-packages/napalm/base/clitools/cl_napalm.py", line 27, in wrapper
    r = func(*args, **kwargs)
  File "/opt/netbox-4.1.3/venv/lib/python3.10/site-packages/napalm/base/clitools/cl_napalm.py", line 255, in call_getter
    r = func(**kwargs)
  File "/opt/netbox-4.1.3/venv/lib/python3.10/site-packages/napalm_huawei_vrp/huawei_vrp.py", line 893, in get_lldp_neighbors_detail
    output = self.device.send_command(command)
  File "/opt/netbox-4.1.3/venv/lib/python3.10/site-packages/netmiko/base_connection.py", line 111, in wrapper_decorator
    return_val = func(self, *args, **kwargs)
  File "/opt/netbox-4.1.3/venv/lib/python3.10/site-packages/netmiko/utilities.py", line 596, in wrapper_decorator
    return func(self, *args, **kwargs)
  File "/opt/netbox-4.1.3/venv/lib/python3.10/site-packages/netmiko/base_connection.py", line 1826, in send_command
    raise ReadTimeout(msg)
netmiko.exceptions.ReadTimeout:
Pattern not detected: 'Info:\\ The\\ configuration\\ takes\\ effect\\ on\\ the\\ current\\ user\\ terminal\\ interface\\ only\\.' in output.

Things you might try to fix this:
1. Explicitly set your pattern using the expect_string argument.
2. Increase the read_timeout to a larger value.

You can also look at the Netmiko session_log or debug log for more information.

However, while I was doing tests for this issue, it started to work!

napalm --user readonly --vendor huawei_vrp --optional_args conn_timeout=20 10.0.0.101 call get_lldp_neighbors_detail
Enter password:
{
    "GigabitEthernet0/0/4": [
        {
            "parent_interface": "N/A",
            "remote_chassis_id": "6c26-36a0-xxyy",
            "remote_system_name": "EXAMPLE",
#...

So could it be that the prompt is changing?

Currently, it's this:

ssh readonly@10.0.0.101
User Authentication
(readonly@10.0.0.101) Password:

Info: The max number of VTY users is 10, and the number
      of current VTY users on line is 1.
      The current login time is 2024-10-22 14:08:00+01:00.
Info: Lastest accessed IP: 10.0.0.95  Time: 2024-10-22 14:05:06+01:00  Password will expire in: -

Info: Smart-upgrade is currently disabled. Enable Smart-upgrade to get recommended version information.
<SWITCH-NAME>

It still doesn't contains Info:\\ The\\ configuration\\ takes\\ effect\\ on\\ the\\ current\\ user\\ terminal\\ interface\\ only\\., though...