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How can you optimize network capacity?

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Network capacity is the maximum amount of data that can be transferred over a network in a given time. It is a crucial factor for the performance, reliability, and scalability of IT systems and applications. However, network capacity is not a fixed or static value. It can vary depending on various factors, such as traffic volume, network topology, hardware configuration, software optimization, and environmental conditions. Therefore, it is important for IT managers to monitor, measure, and optimize network capacity to ensure optimal service delivery and user satisfaction. In this article, we will discuss some of the best practices and tools for network capacity optimization.

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1 Identify network bottlenecks

A network bottleneck is a point in the network where the data flow is constrained or slowed down, resulting in lower network capacity and higher latency. Network bottlenecks can occur at different levels, such as routers, switches, firewalls, servers, or end devices. To identify network bottlenecks, IT managers need to use network monitoring tools that can collect and analyze data on network performance metrics, such as bandwidth, throughput, utilization, error rate, and packet loss. By identifying the sources and locations of network bottlenecks, IT managers can take appropriate actions to resolve them, such as upgrading hardware, adjusting network settings, or redistributing network load.

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Romeo Siquijor

Cemex North America IT Head/Regional CIO. A result-driven business technology leader. Extensive experience in process manufacturing, supply chain management, and shared services. ALM, Info. Mgt. System, Harvard DCE.
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Like money, love, and shoes, bandwidth will never be enough. But oftentimes, it’s not the bandwidth but how applications, protocols, and traffic prioritization configurations are the main culprits of having poor system response time. Properly designing applications, using the right protocols, correct traffic prioritizations go a long way in optimizing user experience and improving the perception of speed.

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2 Implement network segmentation

Network segmentation is the process of dividing a network into smaller subnetworks or segments, based on criteria such as function, location, or security. Network segmentation can help optimize network capacity by reducing network congestion, improving network security, and isolating network faults. By segmenting the network, IT managers can allocate network resources more efficiently, prioritize network traffic more effectively, and minimize network interference and noise. Network segmentation can be achieved by using different methods, such as VLANs, subnets, firewalls, or SD-WAN.

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3 Use network compression and caching

Network compression and caching are techniques that can reduce the amount of data that needs to be transferred over the network, thus increasing network capacity and speed. Network compression is the process of encoding data in a smaller format, using algorithms that reduce redundancy and inefficiency. Network compression can be applied at different layers of the network stack, such as application, transport, or link layer. Network caching is the process of storing frequently accessed or requested data in a local or intermediate storage device, such as a browser, proxy server, or CDN. Network caching can reduce network latency and bandwidth consumption by serving data from a closer or faster source.

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4 Optimize network protocols and applications

Network protocols and applications are the rules and software that govern how data is transmitted and processed over the network. They can have a significant impact on network capacity and performance, depending on how they are designed and configured. To optimize network protocols and applications, IT managers need to consider factors such as reliability, efficiency, scalability, and compatibility. For example, IT managers can choose protocols that are suitable for the type and size of data, such as TCP or UDP, or protocols that are optimized for specific purposes, such as HTTP/2 or QUIC. IT managers can also optimize applications by using techniques such as code optimization, data minimization, or asynchronous communication.

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5 Plan for network growth and demand

Network capacity optimization is not a one-time activity, but a continuous process that requires constant monitoring, evaluation, and adjustment. IT managers need to plan for network growth and demand, by anticipating future network needs and challenges, such as increased traffic, new applications, or changing user behavior. IT managers can use network modeling and simulation tools to test and predict network performance under different scenarios and conditions. IT managers can also use network capacity planning tools to estimate and allocate network resources based on historical and projected data. By planning for network growth and demand, IT managers can ensure that the network can meet the current and future requirements of the organization and the users.

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Conwyn Flavell

Network and Communications Analyst
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This is probably the hardest because capacity cost normally reduce with technology. Unfortunately the price depends on the nature of the contract and tomorrow's business requirements may surprise you. Hence capacity and price are generally wrong in hindsight.

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6 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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Mohammed B.

IT Manager | Expertise in IT projects, operations, security and cloud
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In my experience Network bandwidth is never an enough for a running business due to multiple factors. Applying QoS based on employees nature of work, restricting streaming and entertainment websites will play a vital role in optimal network usage and availability.

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How can you optimize network capacity?

1

2

3

4

5

6

1 Identify network bottlenecks

2 Implement network segmentation

3 Use network compression and caching

4 Optimize network protocols and applications

5 Plan for network growth and demand

6 Here’s what else to consider

IT Management

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How can you optimize network capacity?

1

2

3

4

5

6

1 Identify network bottlenecks

2 Implement network segmentation

3 Use network compression and caching

4 Optimize network protocols and applications

5 Plan for network growth and demand

6 Here’s what else to consider

IT Management

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