22. 09. 2016 Luca Di Stefano Capacity Management, NetEye, Network Traffic Monitoring, Real User Experience Monitoring

Why does my local network latency increase during working hours?

Sometimes you get a higher network latency during certain periods of the day.

Network section of a datacenter (1 Gigabit Ethernet) with normal, constant latency throughout the day

Network section of a datacenter (1 Gigabit Ethernet) with normal, constant latency throughout the day. Please consider that the typical latency for 1 Gigabit Ethernet connections is minor than 5ms.

Network section of a datacenter (1 Gigabit Ethernet) with increased latency during working hours

Network section of a datacenter (1 Gigabit Ethernet) with increased latency during working hours. Please consider that the typical latency for 1 Gigabit Ethernet connections is minor than 5ms.

You notice the trend of growing latency during business hours.

It may seem trivial, but maybe it is useful to underline, that this indication can help identifying overloaded network devices.

In fact, under high load different network devices show different performances. Especially devices that perform routing / filtering / tagging are sensitive to the amount of packages that have to be processed.

The greater the operations, the device has to perform, are the slower the processing queues are emptied and therefore network latency increases. When the latency becomes sensitive to higher workload, you should check the configuration of the device and possibly adjust the configuration to its processing capabilities. By configuring the monitoring of certain network sections with NetEye RUE, we are able to highlight such behaviors and to react in the appropriate way.

 

Luca Di Stefano

Luca Di Stefano

Solution Architect at Würth Phoenix
Hi everyone, I’m Luca, graduated in electrical engineering from the University of Bologna. I am employed by Würth Phoenix since its foundation. I worked mainly as enterprise architect and quality assurance engineer. Previously I was involved in systems measurement and embedded systems programming. I have gained experience on Unix (Solaris, HPUX), Windows, and C, C + +, Java. I personally contribute to the Open Source community as beta tester and developer. During my spare time I love piloting airplanes fly over the beautiful Alps. I practice many sports: tennis, broomball, skiing, alpine skiing, volleyball, soccer, mountain biking, middle distance, none have a sample but the competition excites me! I love hiking, tracking and traveling.

Author

Luca Di Stefano

Hi everyone, I’m Luca, graduated in electrical engineering from the University of Bologna. I am employed by Würth Phoenix since its foundation. I worked mainly as enterprise architect and quality assurance engineer. Previously I was involved in systems measurement and embedded systems programming. I have gained experience on Unix (Solaris, HPUX), Windows, and C, C + +, Java. I personally contribute to the Open Source community as beta tester and developer. During my spare time I love piloting airplanes fly over the beautiful Alps. I practice many sports: tennis, broomball, skiing, alpine skiing, volleyball, soccer, mountain biking, middle distance, none have a sample but the competition excites me! I love hiking, tracking and traveling.

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