Packet Loss

Packet Loss

The five most common questions regarding packet loss

HOW DOES PACKET LOSS OCCUR?

Nowadays, networks in medium-sized and large companies are built in a complex fashion. Data is transported using specific protocols and a variety of different hubs. During transmission, data is constantly prone to network disturbances, and as a result, packet loss.Do you use certain cloud computing services in a variety of locations worldwide? Then check service accessibility and performance from your own particular location with our Cloud HTTP sensor. Our PRTG clouds are located in Asia, Europe, and the USA. You’ll be able to determine response times from all over the world.

WHAT ARE THE CONSEQUENCES OF PACKET LOSS?

Packet loss is quickly discernible in the day-to-day functioning of any enterprise. If video conferencing or VoIP is down on a regular basis, then it won’t be long before employees start to complain. And these complaints must be resolved by IT.

HOW CAN I MEASURE PACKET LOSS?

In PRTG, a number of sensors display the data packet loss rate. In the event a critical value is exceeded, you’ll automatically receive an alert. You’ll therefore be notified should packet loss reach a certain level – ideally, before your coworkers start to complain.

HOW CAN I REDUCE PACKET LOSS?

As an administrator, your job is to find out what is causing packet loss and eliminate the sources of errors. To do so, you must be able to measure, test, and eliminate packet loss. Some of the things you can do are increase bandwith or reduce the strain put on hardware.

WHAT ARE SOME CONCRETE THINGS I CAN DO RIGHT AWAY?

You can start by treating UDP packets with priority to keep video and VoIP connections as unobstructed as possible. On the other hand, slight delays in downloads (e.g. via FTP) or emails (SMTP, POP3, IMAP) are less noticeable to employees and therefore not as crucial for ensuring smooth work operations.

Packet loss: What are the causes? And what can be done to stop it?

CAUSE 1: NETWORK OVERLOAD

As companies grow, so does their network traffic. More and more traffic flows across servers, routers, and switches. Overloads lead to transmission errors, which in turn result in packet loss.

Solution: PRTG monitors the traffic in your entire network. It allows you to detect short-turn load peaks as well as gradual increases in traffic. Sensor tip: Use bandwidth sensors such as SNMP Traffic, NetFlow, IPFIX, and others.

CAUSE 2: DEVICE PERFORMANCE

Overall, your network is extremely stable. But the CPUs of individual devices are overloaded and unable to fully process data. As a result, packet loss occurs. The bottleneck has a negative effect on your entire network.

Solution: Use PRTG to monitor all the hardware in your network. By doing so, you’ll quickly uncover bottlenecks. Sensor tip: Deploy the SNMP CPU Load Sensor and Windows CPU Load Sensor for your CPU monitoring.

CAUSE 3: HARDWARE ERRORS

Devices or device parts can also break down or get a bug. The problem might lie in the RAM or a network card. As with overloads, these glitches can have a negative impact on your entire network.

Solution: With PRTG, you’ll keep a constant eye on your hardware. Errors in devices are often easy to detect, for the device’s readings will suddenly change. Sensor tip: System health sensors such as Buffalo TeraStation or NetApp and the SNMP Hardware Status Sensor.

CAUSE 4: SOFTWARE ERRORS IN NETWORK DEVICES

Software errors are also quick to occur in network devices. And such glitches can lead to packet loss.

Solution: PRTG lets you spot software errors as soon as they arise. Example: by creating an Event Log sensor or using the PRTG API to create a custom sensor and thus individually read software logs and other messages.

CAUSE 5: SEVERAL TOOLS IN USE, BUT NO CENTRAL OVERVIEW

Many administrators use several different tools. But these tools often have limited functions and are only used for specific things, such as tests. As a result, administrators find themselves without a constant, comprehensive monitoring solution..

Solution: With PRTG, you get one network monitoring tool that will monitor all your devices, traffic, and applications at all times, and that can be set to alert you in the case of problems as you see fit.