Aruba 2530 exception Timed-out reading channel, data not available on send_config_set()

Greetings,

I’m running a script to configure a vlan on a switch based on a list of MACs, and for one of the switches I’ve been seeing a iregular behavior. Sometimes the script runs without raising exceptions and the configuration is applied, but sometimes it raises an error during the send_config_set(). I have a lab with a HP procurve 2620 and a Aruba 2530, and i’m using ‘hp_procurve’ as the device type for both. The exception only occurs on the Aruba switch.

I’ve tried changing the ‘global_delay_factor’ to 2 and 4, but have the same behavior.

Please find attached the exception trace and the session log of the device.

This is the code I’m executing:

       sw = {
            'ip':switch['IPAddress'] ,
            'username': USERNAME,
            'password': PASS,
            'device_type': switch['device_type'],
            'global_delay_factor':4,
            'session_log':'session.log'
        }
        conn = ConnectHandler(**sw)
        lldp = conn.send_command_timing("show lldp info remote")
        logger.info(lldp)
        showMac = conn.send_command_timing("show mac-address")
        logger.info(showMac)
        showTrunk = conn.send_command_timing("show trunks")
        logger.info(showTrunk)
        trunkDict = dict(re.findall('(\d+).*(Trk\d+)',showTrunk))
        for mac in macs:
            mac_lldp = mac.lower().replace("-", " ")
            mac_cam = f'{mac.lower().replace("-", "")[0:6]}-{mac.lower().replace("-", "")[6:12]}'
            if mac_lldp in lldp:
                match = re.findall(f'(\d+)\s+\|\s+{mac_lldp}', lldp)
                print(f'this MAC was scrapped from LLDP : {mac} | interface(s) {match}')
                [ports.add(trunkDict[port]) if port in trunkDict else ports.add(port) for port in match]
            elif mac_cam in showMac:
                match = re.search(f'{mac_cam}\s+(\w*\d+)?', showMac)
                print(f'this MAC was scrapped from CAM: {mac} | interface(s) {match.group(1)}')
                if match.group(1) in trunkDict:
                    ports.add(trunkDict[match.group(1)])
                else:
                    ports.add(match.group(1))
            else:
                logger.error("MAC Not Found on this Device. It might be temporarily down. Please refer to the logs to investigate further")
        if ports != False:
            print(f"Configuring vlan {H20_VLANID} on the following interfaces {','.join(ports)}")
       conn.send_config_set([f"vlan {H20_VLANID}", f"name {H20_VLANNAME}", f'tagged ethernet {",".join(ports)}'])`

session.log exception.txt

Kind regards,

[GameMaster47]

Hi,

Good news! your solution also worked for me. Thanks for your help BapRx.

[GameMaster47]

Sorry,

Didn’t have the time to further look into this, so I just used a while loop for retry that multiplies the delay_factor by two for each iteration that fails.

I’ll try to replicate your implementation and see if it fixes this. I might still leave the while loop just to make sure.

Best regards