Data Center Networking
Article | July 5, 2023
Discover key network performance metrics to enhance user experience. Explore in-depth latency, throughput, jitter, packet loss, VOIP quality, and MOS score to optimize network performance analysis.
Contents
1. Importance of Network Performance Metrics for Performance Analysis
2. Critical Key Network Performance Metrics to Monitor
2.1 Latency
2.2 Throughput
2.3 Jitter
2.4 Packet Loss
2.5 VOIP Qualiy
2.6 MOS Score
3. Steps to Monitor and Measure Network Performance
4. Significance of Monitoring Metrics in Network Troubleshooting
4.1 Provides Network Visibility
4.2 Prevents Network Downtime
4.3 Observe Bandwidth Usage
5. Overcome Monitoring Challenges in Network Performance Metrics
6. Key Takeaway
1. Importance of Network Performance Metrics for Performance Analysis
Network performance involves analyzing and evaluating network statistics to determine the quality of services provided by the underlying computer network. Considering various key network metrics, it is primarily measured from the end-users’ perspective. Measuring these metrics, analyzing performance data over time, and understanding the impact on the end-user experience is essential to assess network performance.
Measuring network performance requires considering factors such as the location and timing of measurements. For instance, network performance may differ when comparing paths between cities or during periods of varying user demands throughout the day. Therefore, a comprehensive approach to monitoring network performance involves identifying these variables and identifying areas for improvement.
Network performance metrics offer valuable insights into any network infrastructure and services. These metrics provide real-time information on potential issues, outages, and errors, allowing one to allocate IT resources efficiently. Understanding end-user demands can create an adaptive network to meet future business needs. However, comprehensive monitoring requires an advanced network monitoring tool to gather, analyze, and interpret data effectively, optimizing network performance. Leveraging relevant metrics can improve network performance, help make informed decisions, enhance network reliability, and deliver a superior user experience.
2. Critical Key Network Performance Metrics to Monitor
2.1 Latency
Latency, or network delay, is a crucial performance metric in network monitoring and management. It quantifies the time required to transmit data between destinations. Factors like packet queuing and fiber optic cabling affect network latency. Consistent delays or sudden spikes in latency indicate significant network performance issues. Monitoring and minimizing latency are essential for ensuring optimal network performance. By actively tracking latency, organizations identify and address issues that may cause delays in data transmission, thereby improving overall network responsiveness and minimizing disruptions for end-users.
2.2 Throughput
Throughput metrics for network monitoring enable measurement of the data transmission rate across various network segments. Unlike bandwidth, which represents the theoretical data transfer limit, throughput reflects the successful delivery of data packets to their destination. Variations in throughput can occur across different network areas. A low throughput indicates the presence of dropped packets requiring retransmission, and highlights potential performance issues that need attention. Monitoring throughput is crucial for effective network management. By monitoring this performance metric, organizations can gain insights into the actual data transmission rate, ensuring that it aligns with expected levels.
2.3 Jitter
Jitter, a key performance metric in network monitoring, refers to the variation in delay between packets, measured as the difference between expected and actual arrival times. It results due to network congestion, routing issues, or other factors, leading to packet loss and degraded application performance. Jitter disrupts the standard sequencing of data packets and can arise due to network congestion or route changes. Monitoring jitter is crucial for identifying and addressing network stability issues and ensuring reliable data transmission. By actively monitoring this performance metric, organizations can address variations in packet delay, mitigating issues that leads to packet loss and enabling proactive troubleshooting.
2.4 Packet Loss
Packet loss, a performance management network monitoring metric, represents the number of data packets lost during transmission. It directly affects end-user services, leading to unfulfilled data requests and potential disruptions. Packet loss can arise from various factors, including software problems, network congestion, or router performance issues. Monitoring the entire process precisely to detect and address packet loss, ensures reliable data transmission and optimal network performance. Monitoring packet loss with the right network monitoring software enables timely troubleshooting and optimization of network infrastructure, ultimately enhancing overall network reliability and performance.
2.5 VOIP Quality
VoIP (Voice over Internet Protocol) quality is a crucial network performance metric. It refers to the overall performance of a VoIP system in delivering clear and reliable voice communications over the Internet, replacing traditional phone lines. Factors influencing VoIP quality include network bandwidth, latency, packet loss, jitter, and the quality of end-user devices. Monitoring VoIP quality ensures optimal system functionality and high-quality voice communications. Key performance indicators (KPIs) such as mean opinion score (MOS), jitter, latency, packet loss, and call completion rates are utilized to assess and optimize VoIP quality.
2.6 MOS Score
Mean opinion score (MOS) is a vital performance metric in network monitoring, rating the perceived quality of a voice call on a scale of 1 to 5. It is a standardized measurement developed by the ITU, an international agency focused on enhancing communication networks. Initially designed for traditional voice calls, the MOS has been adapted to evaluate Voice over IP (VoIP) calls. The MOS score considers various factors, including the specific codec employed for the VoIP call, providing a comprehensive assessment of voice calls quality in network monitoring.
3. Steps to Monitor and Measure Network Performance
Step 1: Deploy a Software for Network Monitoring
To effectively measure network performance, deploying dedicated network monitoring software is crucial. While temporary tools like traceroutes and pings can provide insights into ongoing problems, they are insufficient for troubleshooting intermittent network issues. Relying on periodic tools for intermittent issues is reliant on chance, as it may only detect problems when they occur during tool usage. By implementing comprehensive network monitoring software, one can proactively monitor and analyze network metrics, historical data, and performance, allowing for timely detection and resolution of both ongoing and intermittent network issues.
Step 2: Distribute Monitoring Agents
For comprehensive network performance measurement, businesses must distribute monitoring agents strategically across key network locations. These specialized software agents continuously monitor network performance using synthetic traffic, simulating and assessing the end-user perspective.
By distributing Monitoring Agents, organizations can:
• Measure key network metrics, including jitter, packet loss, and throughput.
• Identify and troubleshoot intermittent network issues that are challenging to pinpoint.
• Receive alerts regarding any performance degradation, ensuring a timely response.
• Collect valuable data for in-depth troubleshooting and analysis, facilitating proactive network management and optimization.
Step 3: Measure Network Metrics
After deploying the monitoring agents, they continuously exchange synthetic User Datagram Protocol (UDP) traffic, forming a network monitoring session. During this session, the agents measure network performance by evaluating key metrics and conducting network traffic analysis. The metrics used in the analysis include specific parameters, and the results of these measurements are presented in a network response time graph, providing a visual representation of the network's performance characteristics. Monitoring and analyzing these metrics enable organizations to gain valuable insights into network performance, facilitating informed decision-making and convenient network performance troubleshooting.
4. Significance of Monitoring Metrics in Network Troubleshooting
4.1 Provide Network Visibility
Monitoring metrics plays a vital role in network troubleshooting by offering network visibility. They enable the identification of performance bottlenecks, configuration problems, and security vulnerabilities that detrimentally affects network performance. These issues can be addressed through targeted troubleshooting efforts, resulting in improved network performance and enhanced end-user experience. Organizations identify and resolve network issues by monitoring metrics, ensuring optimal network functionality and overall business productivity.
4.2 Prevent Network Downtime
Effective monitoring metrics are instrumental in preventing network downtime, a costly concern for businesses. Swift identification and resolution of network issues through proactive network performance troubleshooting help minimize downtime, ensuring uninterrupted business operations. By promptly addressing potential problems, network troubleshooting safeguards against lost productivity, revenue, and customer dissatisfaction. Maintaining a proactive approach to monitoring and resolving network issues to enhance network reliability and business continuity.
4.3 Observe Bandwidth Usage
Monitoring metrics are essential in network troubleshooting as they enable the observation of bandwidth usage. This allows organizations to detect abnormal or excessive utilization, pinpoint key performance issues and ensure optimal resource allocation. It allows for identifying critical bandwidth-hogging applications or network intrusions, helping experts take immediate action to mitigate risks, safeguard data, and protect the overall network integrity. Additionally, experts can optimize network performance and ensure a seamless user experience for organizations relying on efficient network infrastructure.
5. Overcome Monitoring Challenges in Network Performance Metrics
Enterprises seeking to ensure optimal network performance and improve overall business operations must overcome network monitoring obstacles. Effectively monitoring, tracking, and improving network performance requires a strategic combination of skilled personnel, advanced technologies, and well-defined strategies. Failing to address these requirements results in various challenges that hinder the ability to enhance network performance effectively.
The challenges that businesses often encounter include managing scalability, handling massive data volumes, achieving real-time monitoring, dealing with multi-vendor environments, addressing network security and privacy concerns, and adapting to evolving network demands. Each obstacle presents unique complexities that require tailored approaches and expert insights.
To overcome these challenges, enterprises must invest in comprehensive monitoring tools capable of handling the scalability demands of growing networks. These tools should provide real-time network visibility, robust analytics capabilities, and intelligent data filtering mechanisms to extract meaningful insights from vast network data. Establishing clear monitoring objectives aligned with business goals and defining key performance indicators (KPIs) are essential in effectively addressing network performance challenges.
6. Key Takeaway
Monitoring network performance metrics is crucial for assessing the quality of services a computer network provides from an end-user perspective. It involves continuously tracking and analyzing key metrics such as latency, throughput, jitter, packet loss, VOIP quality, and MOS score. Organizations can actively monitor and assess performance, proactively identify intermittent issues, and collect valuable data for in-depth analysis by implementing dedicated network monitoring software and strategically deploying monitoring agents across the network. In addition, it is imperative to emphasize the significance of monitoring metrics in mitigating the potential financial impact of network downtime, enhancing the utilization of available bandwidth resources, and efficiently tackling the complexities inherent in scaling operations, real-time monitoring, diverse vendor ecosystems, security concerns, and the ever-evolving requirements of modern networks.
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Network Infrastructure, Network Management
Article | July 27, 2023
There was a time when network security meant having servers on-site. A firewall would protect company data whenever internet traffic entered and exited the network. But, what about today? Modern businesses do not strictly function on-premise.
With the COVID-19 pandemic, the number of people working off-site part-time or full-time increased enormously – and suddenly. This change compelled cybersecurity professionals to reconsider their security measures. Their online privacy solutions had to ensure that their most precious asset — their data — was secure regardless of where workers accessed it.
Even when restrictions are lifted, businesses continue to use remote teams. As a result, more and more of a company's critical data and services are being housed in the cloud. These two criteria indicate that the need to examine network security on a regular basis is here to stay.
The good news is that a VPN, or virtual private network, is one of the most simple and widely accessible network security solutions for remote worker internet access.
Do VPNs Provide Reliable Business Security?
A virtual private network is a kind of Internet security service that enables users to connect to the internet as if they were on a private network. VPNs utilize encryption to provide a secure connection across vulnerable Internet infrastructure.
VPNs are one method for protecting business data and controlling user access to that data. The VPNs safeguard data as users interact with applications and websites through the Internet, and they can conceal specific resources. They are typically used for access control, although alternative identity and access management (IAM) systems can also assist with user access management.
VPN Encryption Enhances Network Security
Data is encrypted so that only authorized parties can view it. Anyone who manages to intercept it, whether a hacker, a fraudster, or another bad actor, is out of luck.
Imagine an employee is working from a coffeehouse, shared workspace, hotel, or airport and has access to your company's business-grade VPN. (Please keep in mind that business-or enterprise-grade VPNs are not the same as free VPN services.) The employee can create an encrypted connection between both the user's device and your VPN by using a VPN client installed on their preferred device and a public Wi-Fi network. This device, as well as any others that connect to your VPN, will establish encryption keys on both sides of the network connection. These keys will then encrypt and decrypt the information being exchanged.
The data of the person working at the coffeehouse is secured by the VPN after they create an encrypted VPN connection by utilizing the coffeehouse's Wi-Fi as a hotspot with a VPN client. Even if cybercriminals get access to the network of that coffeehouse, your employees and their data are secure within the VPN tunnel.
Closing Lines
Network security requires a VPN service from a trustworthy VPN provider. Our next-generation VPN enables enterprises to fully protect their assets in a dynamic, cost-effective, and scalable manner. A VPN solution enables you to connect private networks, devices, and servers quickly and simply to create a secure, virtualized, modern internet.
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Network Management, Network Security
Article | July 17, 2023
Despite a global pandemic and the associated economic challenges, the world has moved to 5G four times faster than it did with 4G LTE, according to 5G Americas.
In the midst of this rollout, how can industries ensure that the benefits of 5G investment warrant the long-term investment costs? Or to put it another way, how can industries leverage 5G technology to build cost-efficient connected industry on a global scale?
The answer is the intelligent edge. The intelligent edge is the analysis of data and development of solutions at the site where the data is generated. By doing this, the intelligent edge reduces latency, costs and security risks, thus making the associated business more efficient. As 5G puts compute closer to the user (whether that be a human or a device) it enables a new paradigm of capabilities with AI, machine learning and a host of related use cases.
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Network Management
Article | July 11, 2022
Network as a Service (NaaS) is gaining ground due to shrinking network boundaries and fast technological evolution in response to changing market demands. NaaS brings with it networks, operations, and business architecture that are more agile and based on open standards.
Rather than the conventional upfront cost, Network as a Service technology delivers networking gear, software, and operational and maintenance services as an operational expenditure. NaaS, like other cloud services, is maintained by the service provider and offered for a set cost.
Why Do Businesses Today, Need Network as a Service (NaaS)?
Businesses have recognized the advantages of the cloud in moving away from conventional on-premises networks. The corporate network boundary has practically vanished, and NaaS is becoming a popular technology.
Offers Flexibility to Businesses
Businesses can obtain a better return and save money by employing utility models instead of large expenditures on hardware and network equipment.
Time for Innovations
NaaS provides innovations by staying up to date with updated software versions via license upgrades and can fulfill corporate demands to introduce new goods and services more quickly.
Minimizes Operational Risk
NaaS will reduce operational risk associated with artificial intelligence (AI) and/or machine learning (ML); businesses will be able to implement the most recent product features and services.
Top 3 Benefits of Network as a Service (NaaS)
Access from Anywhere
Depending on how a cloud-based network is setup, users should be able to access it from anywhere and on any device without employing a VPN, though this creates the need for strict access control.
A user should ideally just need a connection to the internet and login details.
Bundled with Security
NaaS enables a single supplier to provide both networking and security services such as firewalls. As an outcome, the network and network security are more deeply integrated.
Cost-effective
Purchasing cloud services rather than developing one's own services generally leads to cost savings: cloud users do not have to purchase and maintain equipment, and the vendor already has the servers necessary to provide the service.
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