Switchname not detected in ouput

[hmaier-dev]

I'm using get_mac_address_table() on several comware-switches running version 7.1.070. Since two days, I'm not able to pull the mac-addresses from a single switch called SW01_A-Sued due to the netmiko error Pattern not detected: '\\[SW01_A\\-Sued\\]' in output..

The error suggest to explicitly set the pattern, which I have no influence over, or increase the read_timeout which has no effect on error.

My code is the following:

driver = get_network_driver("h3c_comware")
driver = driver(ip, USERNAME, PASSWORD, timeout=10)
driver.open()
mac = []
try:
    mac = driver.get_mac_address_table()
except Exception as e:
    print(f"Problems access switch: {e}")
print(mac)    

Because all switches are on the same firmware version I am a little clueless. I also already tried querying the command manually, but this either didn't work.

Is there anything I can adjust about my approach?

[Wythetells]

Sorry for the late reply, but it may help others with the same problem.
The reason for this problem is that napalm is waiting for "[SW01_A-Sued]" to be echoed, but it does not wait after 10 seconds.
Therefore, the recommended approach is

1. Check the echo settings to see if the device echoes "[SW01_A-Sued]" after executing the command.
2. Increase the timeout period

You can also log in to the switch manually, and after executing display mac-address, observe whether the echo contains "[SW01_A-Sued]" and how long it takes for the command to be executed until "[SW01_A-Sued]" is displayed. If the time is greater than 10s, change the timeout to include the execution time of the device.

Note, remember to execute first "screen-length disable" command to turn off split screen display

[hmaier-dev]

Thanks for the reply! I cannot test your suggestion, but I remember that I ditched the approach via python and wrote some Go to pull the MAC-addresses:
https://github.com/hmaier-dev/topo-tool/blob/main/data/scraper.go#L177

You can close this issue :)