0 Shares 1944 Views

All You Need to Know About Round-Trip Time

What exactly is RTT? 

Round-trip time (RTT) is a networking metric that measures in milliseconds the time it takes for a data packet to be sent and the time it takes for an acknowledgment of that signal to be received. The propagation times for the paths between the two communication endpoints are included in this time delay. As you can imagine, a CDN’s primary goal is to reduce it. Also, latency improvements can be measured by reducing RTT.

RTT test 1

Ping, Latency and now the RTT. It brings out this question: Are they the same?

The ping utility, which is found on almost every computer, is a method of estimating round-trip time. Ping tests, on the one hand, are typically performed within a transport protocol that employs ICMP packets. Network latency, on the other hand, is closely related, but it is not the same as RTT. Latency is the amount of time it takes for a data packet to travel from one endpoint to the other. The processing delay at the echo endpoint is included in Round Trip Time.

What is a good RTT?

Every application will have its own set of requirements, and it is nearly impossible to give a specific time frame. What is tolerable in one use may be intolerable in another. Still, we can approximately say that your users should have an RTT of at least 95ms for normal application usage and a maximum of 190ms before your application degrades the quality of your service.

What are the most prevalent factors influencing Round Trip Time?

Potential elements that may have an impact on RTT are distance, local area network traffic and response time.

  • Distance: CDN optimized connections can minimize the number of hops necessary to reach a destination; nonetheless, network connectivity is limited by distance.
  • LAN Traffic: Because of the quantity of traffic on the local area network, connections might be barriers before they ever reach the wider Internet network.
  • Response Time: The time it takes a target server to reply to a request is determined by its processing capability, the number of requests processed, and the type of the request. As a result, a longer server response time raises RTT.

 

Reducing Round Trip Time with a Content Delivery Network (CDN)

A content delivery network (CDN) is a network of strategically positioned servers, each carrying a duplicate of a website’s content. It is capable of addressing the following elements that impact RTT: 

First of all, each PoP that contains cached copies of site content is responsible for interacting with site users in their immediate location. There are less signal transmission distance and network hops to reach a server. Also, on a PoP in the user’s geographic area, CDNs cache HTML, media, and even dynamically generated content (DGC). Users’ requests can be handled by a local PoP, decreasing RTT.

Moreover, TLS 1.3 decreases web page latency by shortening the RTT required to connect the client and server. TLS 1.3 has been updated with new digital signature algorithms. With 1.3, the first support for 1-RTT Handshake and 0-RTT were added. This feature is provided to our customers free of charge on the Medianova CDN platform.

Last but not least, another impact worth mentioning is speeding up server response times and reducing RTT by using Anycast. In most cases, Anycast directs incoming traffic to the nearest data center with less network congestion during peak traffic periods.

At Medianova, we focus on all the ways to accelerate, enhance and secure your content delivery. Get in touch with us to learn more about how Medianova can help you deliver the best online experiences. 

 

 

 

You may be interested

The Ultimate CDN (Content Delivery Network) Guide 2022
CDN
4437 views
CDN
4437 views

The Ultimate CDN (Content Delivery Network) Guide 2022

medianova - February 8, 2022

The Ultimate CDN Guide - Everything About Content Delivery Network 2022 You probably know what CDN (Content Delivery Network) stands for. You may also be aware of…

The Essential CDN Glossary
CDN
10733 views
CDN
10733 views

The Essential CDN Glossary

Nadia Benslimane - November 21, 2019

Why Have We Decided To Create a CDN Glossary? Whether you are new to the world of CDN, or have been involved in it for years, there…

Medianova and Streaming Platform Jet-Stream Announce Partnership
Press
52 views
Press
52 views

Medianova and Streaming Platform Jet-Stream Announce Partnership

ulasgursoy - September 9, 2022

Medianova and Streaming Platform Jet-Stream Announce Partnership IBC - Amsterdam, September 9, 2022 Broadcasters get better scale and performance for OTT streaming in Europe, North Africa and…

How To Improve Your API Security
API Security
161 views
API Security
161 views

How To Improve Your API Security

ulasgursoy - August 25, 2022

Tips for Improving Your API Security Our relationship with applications is reaching to an advanced level as the possibilities for digital communication increase. However, for apps to…

Private CDN | Explained 
CDN
319 views
CDN
319 views

Private CDN | Explained 

ulasgursoy - August 11, 2022

Private CDN | Explained  Digital content providers face the daunting task of maintaining a high-quality delivery experience amidst a growing customer base. Consumers expect multimedia content, such…

Most from this category

The Essential CDN Glossary
CDN
10733 views
10733 views

The Essential CDN Glossary

Nadia Benslimane - November 21, 2019
API Security in Numbers 2022
security
326 views
326 views

API Security in Numbers 2022

Sıla Saltoğlu - May 24, 2022
API Caching Benefits for E-commerce
CDN
446 views
446 views

API Caching Benefits for E-commerce

Sıla Saltoğlu - May 9, 2022
How to Use Webinars to Boost Business Growth
How To
475 views
475 views

How to Use Webinars to Boost Business Growth

Sıla Saltoğlu - April 14, 2022