Network speed matters for every business, whether you're leading video calls, connecting to cloud-based apps, or running global operations. One critical factor that influences your network’s performance is latency. But what is latency, why does it matter for your network, and how can you improve it? We answer these questions and break down what you need to know below.
What Is Latency?
Latency measures how long it takes for data to travel from its source to its destination and back again. Think of it like a digital round trip – when you send an instant message or click a link, latency determines how quickly that action completes. This delay, measured in milliseconds (ms), affects everything from website loading times to video call quality.
Latency is often confused with bandwidth, but these are very distinct terms. Bandwidth measures the amount of data your network can transmit at one time, while latency measures the delay in that transmission. Even a high-bandwidth network might still perform poorly if it has high latency.
What Causes Latency?
Several factors can contribute to your network’s latency, including:
- Distance: The further data has to travel, the higher the latency. This especially impacts businesses with international operations or satellite-based systems.
- Congestion: High levels of data traffic can overwhelm networks, leading to slower response times.
- Hardware Limitations: Outdated or underpowered routers, switches, or servers can slow down data processing and transmission.
- Packet Loss: Data packets lost during transmission must be resent, which increases the time it takes to complete the process.
- Routing Delays: Inefficient or poorly configured routing can cause data to take longer paths than necessary, delaying data delivery.
These latency issues often stack up, creating bigger problems for your network performance. Luckily, most latency problems have clear solutions. Understanding which factors affect your network can help you implement the right fixes.
Why Is Latency Important?
Latency impacts more than just how fast a website loads or how smooth a video call is. It directly affects your business operations and customer experiences, particularly in industries where real-time communication and data transmission are critical.
For businesses, high latency can mean slower workflows, decreased productivity, and frustrated customers. Even as little as 300 milliseconds of latency can make voice and video calls choppy and incoherent.1
5 Tips for Improving Latency
Improving latency typically involves optimizing network infrastructure, software, and operational strategies. Here are five ways to reduce latency in your network:
1. Upgrade Your Network Infrastructure
Investing in modern hardware, such as high-speed routers and switches, can provide immediate latency reductions. Fiber optic connections, in particular, offer faster and more reliable data transmission than older technologies like DSL or copper lines.
These upgrades not only reduce latency but also increase overall network reliability while preparing your infrastructure for future growth. Consider establishing redundant connections and implementing network monitoring tools to maintain optimal performance over time.
2. Implement Quality of Service (QoS) Settings
QoS settings give you precise control over how your network handles different types of data traffic. For example, you could prioritize VoIP or video conferencing data over your less time-sensitive traffic to make sure these applications have the bandwidth they need to operate smoothly.
3. Use Content Delivery Networks (CDNs)
An estimated 72% of web traffic passes through CDNs,2 which cache copies of your content on servers closer to end users to reduce the distance data has to travel – a must for enterprises with a global presence or high volumes of web traffic.
Adding a CDN noticeably speeds up users' access to websites, applications, and other online services. CDNs' distributed nature also provides built-in redundancy and protection against certain types of network attacks, strengthening your overall security posture.
4. Optimize Routing and Paths
Using optimized routing protocols and network paths can minimize the distance your data travels, reducing latency. Solutions like SD-WAN help with this by providing intelligent routing capabilities that automatically select the fastest available paths for your data.
5. Minimize Network Congestion
Load balancing helps prevent congestion by distributing traffic across multiple servers or network paths. Combining this with regular monitoring and analysis can help your IT teams identify potential bottlenecks before they impact performance. Many organizations also benefit from scheduling bandwidth-intensive tasks during off-peak hours to maintain consistent network performance throughout the day.
What Industries Are Most Impacted by Latency?
Every business needs good network performance, but some industries face more challenges and requirements when it comes to latency. Industries where latency has the most significant impact include:
Healthcare
Healthcare providers increasingly depend on low-latency networks to deliver critical care. For example, telemedicine and remote diagnostics need low latency for real-time interactions and accurate data sharing, and emergency response systems demand immediate communication capabilities and instantly accessible electronic health records.
E-Commerce
High latency can slow website load times, resulting in frustrated customers and lower sales. Case in point: 40% of shoppers say they’ll abandon a website if it takes longer than three seconds to load.3 Latency also affects critical e-commerce operations, such as inventory management systems and payment processing applications, both of which need real-time updates to run effectively.
Finance
Financial institutions must be able to process transactions and respond to market changes in microseconds. Turning a profit or losing money often comes down to network latency, making it a central concern for the entire industry.
Education
Educational institutions rely on low-latency networks to create engaging virtual learning environments. As more schools embrace distance learning, maintaining optimal network performance is important for ensuring educational success for students of all ages.
Optimize Your Network Latency With TailWind
Reducing latency takes more than just upgrading your hardware or tweaking settings. You'll need to take a strategic approach that considers your network's unique requirements – but the payoff is worth the effort.
At TailWind, we help businesses minimize latency and maximize network performance across every location. From structured cabling services designed to optimize your network infrastructure to 24/7 support through our NOCaaS solutions, our experts are here to help your organization operate efficiently and stay connected.
Ready to take control of latency issues? Contact us today to get started.
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