Network optimization: Complete guide for IT professionals

Modern businesses depend on their IT networks for everything from communications to resource-sharing and software management. Network performance therefore plays a critical role in the success of any organization. Our network optimization guide help boost overall network performance, minimize costs and improve user experience.

In this article, explore the importance and benefits of network performance optimization, best practices, and key actions you can take now.

What is network optimization?

Network optimisation is the process of improving the performance, security, and reliability of a network infrastructure.

The goal of this process is to provide a fast and efficient network experience for all users. It involves using the right tools, techniques, and data analysis to monitor, manage, and continuously improve how a network operates.

As businesses evolve, their network must be able to support increasing demands. This means anticipating change and ensuring IT systems can scale alongside business operations. Keeping network hardware and software up to date is a key part of this process.

Network optimisation focuses on fine-tuning network components such as hardware, software, and communication protocols to achieve the following goals:

• Reduce latency by minimising delays in data transmission
• Maximise throughput to ensure the network can handle higher volumes of data efficiently
• Ensure seamless data transmission so users and systems experience reliable connectivity

Continuously optimising the network enhances reliability, security, and speed across the entire enterprise system. This improves user experience, supports business growth, and maintains a stable and secure IT environment.

Why is network optimization important for business?

Network optimization is essential for businesses that depend on digital communication, cloud services, and real-time applications. A well-optimized network ensures systems run smoothly and employees can work without disruption.

An optimized network helps companies to:

• minimize downtime by reducing outages and performance issues
• prevent bottlenecks that can slow down applications and services
• enable efficient working by providing reliable and consistent connectivity

Additionally, it enables your business to scale more easily and handle higher traffic volumes. These capacities are essential for long-term growth and competitive success.
Implementing network optimization facilitates remote access to networks, which is particularly important to distributed teams.Efficient network management improves usability and encourage a positive end-user experience while driving productivity.

 

What are the key areas of network performance optimization?

Businesses must track several key areas to effectively measure overall network performance. The following key performance indicators (KPIs) provide insights into how well the network is operating and where improvements are necessary:

Bandwidth Management

Bandwidth is the maximum amount of data that a network can transmit at any given time. High bandwidth supports data-intensive and simultaneous tasks. Meanwhile, low bandwidth can cause slow performance, network congestion and poor audiovisual communication.

Monitoring bandwidth usage helps ensure your network has sufficient capacity for your business needs.

Important: Bandwidth and through are not the same! Bandwidth is the capacity of network, while throughput is the actual amount of data transmitted.

Latency and RTT reduction

Latency refers to the delay in transmitting data from one point to another. In other words, how long it take for a packet of data to travel. The lower the latency, the faster your network operates, allowing for seamless connectivity.
Similarly, Round-Trip Time (RTT) refers to the time it takes for data to go from the source to the destination and back again. This provides further insight into the speed and reliability of the network connection.

Reliability and Redundancy

Networks need to provide maximum availability at all times, ensuring continuous business operations and avoid costly downtime.

Availability is normally measured as a percentage measuring the time a network is online and usable over a given period.

Redundancy systems allow the network to keep running even if a component fails. This minimizes the risk of disruption, enhancing end user experience and ensuring constant productivity.

Security Optimization

Security measures keep your company’s sensitive data safe. Cyber-attacks can seriously affect the functionality of your systems and even cause network crashes. This can lead to significant business disruption and revenue loss.

Network security features include encryption, firewalls and access controls.

Other Key Performance Indicators

Other performance metrics of your network to monitor include:

• Packet loss: This is when data packets fail to reach their destination. Packets are small segments of data sent individually over computer networks.High levels of packet loss degrade network performance and user experience.
  

  Data packets break the entire information down into individual data and send them to the right destination.

• Jitter: Jitter measures the variation in packet arrival times, caused by unstable, disruptive flow of data packets. High jitter can cause choppy audio and visuals. Minimizing this metric is crucial for applications requiring real-time data, such as video conference calls.
• Error rate: This tracks the number of problems that occur during data transmission. Reducing the error rate improves the quality and reliability of your network.
• Response time: Response time measures how quickly the network responds to requests. Faster response times improve customer experience and overall network efficiency.

What affects a network’s performance?

Network performance is influenced by a combination of design choices, physical constraints, and usage patterns. Understanding these factors is essential when optimising a network to reduce latency, prevent bottlenecks, and improve overall reliability.

Here is a table outlining the key elements that impact network performance:

Factor	Description	Impact on Performance
Network design	How network devices are connected and how data moves between them.	More devices and complex routes can slow down data and increase delays.
Distance	How far data must travel between systems.	Greater distances increase latency, particularly for real-time or latency-sensitive applications.
Transmission medium	The materials and technologies used to transmit data, such as wired or wireless connections.	Wireless connections are usually slower and less stable than wired ones. In wired networks, fibre is faster than copper.
Network traffic	The volume of data being transmitted across the network at any given time.	Heavy usage can lead to congestion, packet loss, and performance bottlenecks if bandwidth is insufficient.
Hardware performance	The capability and configuration of network devices such as switches, routers, and network interface cards.	Older or underpowered hardware can limit speed and reliability.

How to optimize network performance: Key steps and best practices

The three main areas to bear in mind when optimizing an enterprise network are hardware, connectivity and configurations. When planning optimization tasks, consider the following techniques to keep your network running at peak performance and enhance productivity:

Practice	Why?
Regular monitoring	Monitor your network performance and devices to detect and resolve issues in real time before they impact users.
Traffic prioritization	Use Quality of Service (QoS) protocols to prioritize critical business applications and allocate resources accordingly.
Load balancing	Distribute traffic evenly across servers or network paths to prevent overload on any single point.
Data compression	Reduce the size of transmitted data to reduce latency and enhance speed.
Network security	Protect your network with firewalls, encryption, and regular security updates. This will prevent vulnerabilities that could affect performance.
Network segmentation	Divide your network into smaller segments to reduce congestion, limit the spread of issues and improve manageability.
Upgrade hardware	Regularly maintain and update your network hardware, such as routers, switches and servers, to prevent performance bottlenecks.
Traffic analysis	Analyze network traffic patterns to identify bottlenecks, unusual activity, or inefficient usage.
Optimize protocols	A network protocol is a set of rules that defines how data is transmitted and received across a network. Use efficient and up-to-date protocols to improve reliability and enhance data transmission efficiency.
Failovers and backups	Implement redundancy and failover mechanisms to maintain network availability during outages or hardware failures.
Optimize topology	Design network layouts to minimise unnecessary hops and complexity. This will reduce latency and improve data flow.
Plan for scaling	Ensure network capacity can grow with business needs, allowing the network to handle increased users, devices, and traffic.
Software-defined networking (SDN)	Use SDN to centrally manage and dynamically optimise network traffic, improving flexibility and responsiveness.

Find out how to implement a network maintenance plan with Evernex’s step-by-step network maintenance checklist.

 

Network traffic analysis: deep dive

Network traffic analysis (NTA) is a key aspect of optimization, and is the process of monitoring and analyzing network traffic data to gain insight into the behavior of all your network elements.

It involves collecting, processing, and analyzing network data generated by components as they communicate with one another. Such information includes packet and traffic data. The aim of this process is to identify potential threats, network performance issues, and capacity planning.

Getting the most out of all of this flow data requires correlating this information with other data sources, such as network connections. When we analyze flow data, we can identify the source and destination of traffic, the amount of data being transmitted, and the duration of the communication. Additionally, when we correlate flow data from multiple sources, we can obtain a more complete picture of network activity.

Why do businesses need to pay attention to NTA?

Organizations need to consider NTA as part of their network optimization for several reasons, including:

• Complex networks: As network infrastructure becomes more complex, it becomes challenging to monitor and manage. NTA provides visibility into the network’s behavior and performance, helping organizations to manage their network infrastructure more efficiently.
• Detecting threats: Traditional security solutions like firewalls and intrusion detection systems are not enough to protect networks from advanced threats. NTA provides an additional layer of security, helping organizations to detect and respond to threats in real-time.
• Slow network performance: Slow performance can severely affect business operations, damaging user experience and impacting revenue. NTA can help identify network performance issues, allowing them to optimize their network’s bandwidth usage and improve overall performance.
• Heavy network traffic:As more devices and applications are added to the network, heavy network traffic can cause performance issues. NTA helps find the source of heavy traffic and take action to mitigate the issue.

How can I analyze my network traffic?

Analyzing enterprise network traffic involves several steps, including:

• Collecting data:Data sources for network traffic analysis can include packet capture, flow data, and deep packet inspection.
• Analyzing data:Once data is collected, it is analyzed to identify patterns and trends in network behavior. NTA tools can help automate the analysis process, making it easier for security teams to identify potential issues.
• Correlating data:Measuring the relationship between flow data and results from security solutions like intrusion detection systems can provide additional insights into potential threats.
• Storing historical data:Safeguarding historical data allows security teams to identify patterns and trends in network behavior over time. It provides valuable information for capacity planning and helps detect potential issues before they become critical.

How can you benefit from optimizing your network?

Effective network optimization provides several benefits for your business performance:

Increased efficiency

Optimizing network data flow minimizes downtime and streamlines operations. Reducing latency, jitter, and response times allow systems to perform tasks faster and more reliably.

Maximum uptime

High network availability means it stays continuously active, enabling consistent operations. Sustained uptime boosts productivity and ensures critical business functions run with minimal interruption.

Enhanced user experience

A well-optimized network ensures that users experience minimal delays and smooth connectivity. This in turn improves customer satisfaction and encourages long-term loyalty. Poor user experience directly leads to the loss of customers and damages the reputation of the company.

Significant cost savings

Network optimization helps businesses maximize the return on their original hardware investment by keeping it running better for longer. It also avoids overspending on unnecessary refreshes or additional infrastructure.

Improved security

Enhanced network security features protect your business from potential breaches and keeps your business compliant with data security regulations. Robust data security also maintains trust among users and stakeholders, ensuring a strong business image.

Check out our blog to learn more about cybersecurity considerations in network maintenance.

Scalability

Optimized networks are better equipped to handle growth. A growing business may experience:

• Increased usage by employees and clients
• More complex operations
• Higher data storage needs

Optimization allows your company’s network to adeptly manage these greater demands. This makes it easier to scale your infrastructure up as your business expands.

Key benefits of NTA

NTA specifically provides several benefits as part of an optimization strategy. These include:

Benefit	Explanation
Improved network visibility	NTA helps organizations to get a full overview of their network’s behavior and performance. It allows security teams to detect unusual network traffic changes, monitor network availability, and identify network resources that need optimization.
Threat detection	NTA provides security teams with the ability to detect threats that may go unnoticed by existing security controls. It can identify suspicious traffic patterns, detect intrusion attempts, and provide threat intelligence to security teams. With the right tools, it’s even possible to analyze encrypted traffic.
Capacity planning	NTA helps organizations plan for future growth. It can identify network resources or network elements that are underutilized or overutilized, providing valuable information for capacity planning.
Historical data	Storing historical data provides insights into network behavior over time. It enables security teams to identify patterns and trends, helping them to detect potential issues and optimize network performance.

How can I leverage network optimization services and solutions?

By using specialized tools and expert support, companies can improve network performance while reducing downtime and costs. Optimizing your business network ensures:

• smoother operations
• faster data transfers
• seamless real time communications
• stronger security across all connected systems

But how can you know which options are right for your business?

What tools are out there?

Quality-of-service (QoS) tools enable network managers to optimize various network applications by using traffic control mechanisms or technologies to control network traffic. They increases the visibility of jitter, bit rate, delays, and packet rates of the network.

This will help control network latency and bandwidth usage, enhancing network performance. And allows networks and organizations to prioritize traffic.

SD-WANs (software-defined wide area network) manage and simplify complex networks, selectively routing network traffic and unifying network connections to improve performance.

This allows IT teams to increase control over the network infrastructure and quickly react to changing business requirements.

Meanwhile, data compression helps to manage increasing network traffic, meaning data needs less time to transfer and consumes less network bandwidth. This results in fewer delays and higher productivity. Optimizer appliances and network devices provide compression functions to minimize data and reduce buffer usage.

Enterprise-Level Optimization vs Consumer Tools

Enterprise-grade optimization solutions ensure robust bandwidth management, high availability, and advanced security for large-scale business networks.

Two top examples of enterprise-level tools businesses can use themselves include:

• Cisco DNA Center: network management and automation platform that supports large-scale deployments, advanced analytics, and AI-driven optimization.
• VMware NSX: Network virtualization and security solution that enables micro-segmentation, dynamic load balancing, and cloud-ready scalability for complex enterprise environments.

Meanwhile, consumer tools are best suited for smaller, simpler setups. While they may lack the scalability of enterprise-level tools, their main benefits are their ease-of-use and affordability. These make such tools a strong option for small-scale companies.

Top consumer tools include:

• Netgear Nighthawk App: Simplifies Wi-Fi setup, bandwidth prioritization, and performance monitoring.
• TP-Link Tether: App for managing small routers, providing parental controls, basic traffic management, and quick troubleshooting.

Third-party support and maintenance add-ons

Third-party maintenance providers offer continuous network monitoring, timely updates, and proactive issue resolution. Robust, consistent IT support and maintenance keeps optimal performance through expert oversight and reduces the burden on in-house IT teams.

Meanwhile, Managed Infrastructure Services also provide comprehensive ongoing monitoring and management to keep your network available and secure.

Reputable service providers also provide flexible SLAs to suit evolving business demands and keep client costs low.

NTA solutions: what to look for

There are many different network analysis tools available. While some of these are commercial, others are open source. These tools include the Netflow traffic analyzer and the SolarWinds netflow traffic analyzer, which can help us monitor network traffic and gain insights into network performance.

Organizations can also choose to use network traffic analysis solutions, which are typically commercial products that offer a more comprehensive set of features than standalone tools.

These solutions can be complemented with a network traffic monitor, a tool used to capture and display network traffic in real-time.

Choosing an NTA solution

When choosing an NTA solution, organizations should consider the following factors:

• Comprehensive Network Traffic Analysis: The solution should provide comprehensive network traffic analysis, including packet capture, flow data analysis, and deep packet inspection. It should be able to analyze both encrypted and unencrypted traffic.
• Network visibility: The chosen solution should be able to monitor network traffic across all network devices and connections.
• Traffic analyzer: A robust NTA solution should include a traffic analyzer that can identify patterns, unusual changes, and heavy network traffic. It should be able to generate alerts for security teams when it detects potential threats.
• Historical data storage: It should safeguard historical data and provide reports that summarize network performance over time and identify potential issues
• Network performance monitor: A network performance monitor can identify performance issues and provide insights into network capacity and utilization.
• Integration with existing security solutions:The NTA solution should integrate with existing security solutions like firewalls and intrusion detection systems to avoid compatibility issues.
• Ease of use:The NTA solution should be easy to configure and use, with a user-friendly interface that allows security teams to analyze network traffic quickly and efficiently.

How can Evernex help you with network optimization?

At Evernex, we specialize in comprehensive IT lifecycle solutions for businesses. These include network optimization services tailored to meet the unique needs of your enterprise, covering top brands like Cisco, as well as EOL/EOSL hardware.

To find out how EOL can affect your Cisco Meraki networking equipment and how Evernex can support you, read our industry guide on Meraki EOL hardware.

Our experts work closely with your team to assess your current network, identify bottlenecks and implement solutions that:

• improve performance
• reduce costs
• enhance security

We offer:

• End-to-end solutions: Evernex’s Third-Party Maintenance (TPM) provides a full suite of network optimization services. These range from initial assessments to implementation and continuous monitoring.
• Customized strategies: Every business is different. This is why we tailor our optimization strategies to align with your specific requirements and goals.
• 24/7 support options: With our round-the-clock monitoring and support options, we help you stay ahead of potential network issues. This ensures minimal downtime and disruptions.
• Global reach: Evernex operates in more than 165 countries. This allows us to support businesses of all sizes across the globe with local expertise.

Frequently questions asked on network optimization