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I have experience working with technical brands related to telecommunications equipment and its software.

The main focus was on:

• Functional testing: verifying the correct operation of all declared functions of the hardware and software, including routing, switching, security, and network management.
• Performance and load testing: assessing the stability of the equipment under high load, measuring throughput and response time.
• Compatibility testing: checking the interaction of the equipment with products from other manufacturers and various operating systems/software versions.
• Test automation: developing and maintaining test scripts for regression testing.

I used the following tools and technologies:

• For automation: Python, with libraries like pytest or unittest.
• For load testing: JMeter (to a lesser extent), specialized tools for testing network equipment (e.g., Ixia QuickTest, Spirent TestCenter — if access is available).
• For working with network protocols: Wireshark.
• Test management systems: TestRail.
• Bug tracking systems: Jira.

An example of a simple Python script to check network device availability via ping:

import subprocess
import platform

def ping_device(ip_address):
    """
    Checks device availability by IP using the ping command.
    """
    param = '-n' if platform.system().lower() == 'windows' else '-c'
    command = ['ping', param, '1', ip_address] # Send 1 packet

    try:
        result = subprocess.run(command, capture_output=True, text=True, timeout=5)
        if result.returncode == 0:
            print(f"Device at {ip_address} is reachable.")
            return True
        else:
            print(f"Device at {ip_address} is not reachable. Output: {result.stdout}")
            return False
    except subprocess.TimeoutExpired:
        print(f"Timeout expired for {ip_address}.")
        return False
    except Exception as e:
        print(f"Error during ping: {e}")
        return False

# Usage example
if __name__ == "__main__":
    device_ip = "192.168.1.1" # Replace with real IP
    if ping_device(device_ip):
        print("Test passed.")
    else:
        print("Test failed.")

I also worked with specific protocols and technologies for telecom (e.g., SNMP for monitoring, various routing protocols).

Overall, experience with technical brands involves deep immersion into the technical details of the product and its specifications.