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How do you avoid network errors and failures in computer engineering?

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Network errors and failures can disrupt the performance, security, and reliability of computer systems and applications. As a computer engineer, you need to know how to prevent, detect, and resolve these issues using various tools and techniques. In this article, you will learn some of the common causes and types of network errors and failures, and how to avoid them using best practices, protocols, and testing methods.

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Islam Zidan

Senior Solutions Architect at Hewlett Packard Enterprise
Igor Stameski, MSc

Telecommunications Professional

1 Causes and types of network errors and failures

Network errors and failures can be caused by a variety of factors, such as hardware malfunctions, software bugs, configuration errors, environmental interference, malicious attacks, or human errors. Common types of network errors and failures include packet loss, congestion, routing issues, authentication issues, and encryption issues. Packet loss occurs when data packets are dropped or corrupted during transmission. Congestion occurs when the network traffic exceeds the capacity of the network resources and leads to delays, losses, or retransmissions. Routing issues occur when the network devices fail to find or follow the optimal path to the destination. Authentication issues arise when the network devices or users fail to verify their identity or access rights. Encryption issues occur when the network data is not properly encrypted or decrypted.

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Igor Stameski, MSc

Telecommunications Professional
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Tips for network administrators. If you use cli commands, then use copy and paste text in notepad, then later in the cli prompt. Two times check when use no keyword before cli commands - because if you let say delete routing protocol you loose remote connectivity to device. If you use gui administration always manage what will happen when I do some action. Always do you work - I do action - I expect this - I didn't get the result I expected - checks for errors and notifications and try to heal the process of your action - if no success call tech/vendor support. Always plan your action on live network. Any configuration changes might influence loss connectivity to device, between devices or to disrupt services to end customers.

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Islam Zidan

Senior Solutions Architect at Hewlett Packard Enterprise
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IT Network failures is a critical task in any industry where everything is connected.To ensure the reliability and resilience of your network, several key strategies must be implemented.a well-thought-out network design is paramount. Clearly define your network's objectives, including performance, capacity, and security requirements. Plan for redundancy by incorporating backup systems, multiple network paths, and load balancing. Periodically review and update your network architecture to accommodate growth and evolving technology.

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2 Best practices for network design and configuration

To avoid network errors and failures, you need to plan and document your network architecture, topology, and protocols, and keep them updated and consistent. Furthermore, use standard and compatible network devices, cables, connectors, and interfaces. It is also important to configure your network devices and settings according to the specifications, requirements, and security policies. Additionally, use appropriate network addressing, naming, and domain schemes. Lastly, use network segmentation, isolation, and firewall techniques to separate and protect different network zones, devices, and data. Following these best practices for network design and configuration will help you avoid conflicts, mismatches, or errors.

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3 Protocols for network communication and control

To ensure a successful network, protocols must be implemented for communication and control. These include transport layer protocols, such as TCP and UDP, which offer reliable or unreliable data delivery, error detection and correction, flow control, and congestion control. Network layer protocols, such as IP and ICMP, provide routing, addressing, fragmentation, and error reporting functions. Data link layer protocols, like Ethernet and ARP, are responsible for physical and logical connection, frame transmission, and address resolution functions. Application layer protocols like HTTP and FTP provide specific functions and services for network applications. Finally, security protocols like SSL and IPSec encrypt data, authenticate users, and ensure the integrity of data.

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4 Testing methods for network performance and quality

To ensure your network is running smoothly, it's important to test your network performance and quality. This can be done through various methods, such as pinging, tracerouting, sniffing, measuring bandwidth, and testing throughput. Ping sends and receives echo packets to test the connectivity and latency of a network device or host. Traceroute traces the route and hops of a packet from the source to the destination, displaying any delays or errors along the way. Sniffer captures and analyzes network traffic and packets, displaying the details and contents of data. Bandwidth measures the data rate or capacity of a network link or connection, impacting network speed and quality. Throughput measures the actual data rate or amount of data transferred over a network link or connection, which affects network efficiency and performance.

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Islam Zidan

Senior Solutions Architect at Hewlett Packard Enterprise
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Providing proper tools and AI/ML tools that currently available with most of leading network infrastructre OEM where the idea is to be more proactive rather than reactive when it comes on we monitor/troublshoot network issues.

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5 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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How do you avoid network errors and failures in computer engineering?

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2

3

4

5

1 Causes and types of network errors and failures

2 Best practices for network design and configuration

3 Protocols for network communication and control

4 Testing methods for network performance and quality

5 Here’s what else to consider

Computer Engineering

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How do you avoid network errors and failures in computer engineering?

1

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5

1 Causes and types of network errors and failures

2 Best practices for network design and configuration

3 Protocols for network communication and control

4 Testing methods for network performance and quality

5 Here’s what else to consider

Computer Engineering

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