Ping latency test results: How slow is your WAN link?

Using the PING Command to Test Network Connections

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Cisco expanded its endpoint portfolio this week with the release of new wireless Cisco headsets and room displays. Besides using an invalid switch which returns the allowable switches and an errorlevel of 1. For example, a ping across our WAN link to the Internet showed 62 ms but increased to ms when a file upload was in progress. Use ssh to log in to unexgate. Click the Tracerout Button. This will advance you to a page indicating that all of the listed servers will be ping-ed twice per second and every thirty 30 seconds a report on your connection from A to F will be provided. To find out more, including how to control cookies, see here:

IP & VoIP networking


For each ping reply received, a round trip time is reported. It is measured by the local clock in the pinging computer, from when the request left to when the reply arrived. There is some variation. In the screenshot below, the time it took to hear back from the same destination ranged between 3. The "-c 10" option tells ping to issue a count of 10 requests. Afterward, in the last line of output, a summary of the times is reported.

The average rtt for the 10 attempts is shown as 3. Other options to the command are -i 0. Thus, 10 pings should take about 2 seconds. Ping times correlate very roughly with distance between source and destination machines. A machine can ping itself very fast. Pinging another machine on the local network is also fast but takes longer, as you would expect.

Pinging machines outside the local network takes notably longer. And ping time increases with geographic distance. Based on the speed of light, which is about 1 foot per nanosecond billionth of a second , and which limits signal speed, when you ping to great distance you can calculate theoretical minimum time.

A shorter time would be impossible. For example covering the miles from L. If packet loss is still being reported a few hours later, then it is time to escalate. Contact your ISP to bring them into the situation. At a minimum, they can advise as to whether they are detecting any technical issues with your link. It may be that your traffic load is such that you need to upgrade to a higher- bandwidth Internet connection.

Our goal is to have consistently low latency on our network, and ping will tell us how long it took for each echo to traverse the network -- i. The statistics in the summary will show us how consistent the latency is. If you log your ping results, even manually, you can establish baselines for your specific network connections.

You will need these baselines as reference points if you suspect network problems. Not enough to be noticeable by users. If you start seeing large swings in the ping response time -- that is not good.

That variation in latency is known as jitter and can cause problems for latency-sensitive, real-time applications like VoIP. Temporary fluctuations in round-trip time can just indicate a busy network. For example, a ping across our WAN link to the Internet showed 62 ms but increased to ms when a file upload was in progress. When latency and jitter results remain unacceptable, though, it is time to either start looking at WAN optimization and QoS solutions to control bandwidth utilization or start thinking of upgrading your WAN bandwidth.

Juniper Networks has introduced the Contrail Edge Cloud. The platform for running service providers' network edge applications After years of stagnation, the access-layer network is in need of a makeover. Implementing software-defined configurations is Networking analysts and engineers examine SD-WAN security concerns, the importance of cabling in wireless environments and a new Cisco expanded its endpoint portfolio this week with the release of new wireless Cisco headsets and room displays.

Large-room video conferencing systems are seeing renewed growth, as corporate mandates, employee demand and productivity Twilio has acquired startup Ytica to improve the native analytics and workforce optimization tools of its Twilio Flex cloud Carrier cloud deployment is helping network operators respond to opportunities that will drive transformation, like 5G and IoT.

Providers' SD-WAN services currently compete largely on cost, but network operators hope to gain market share with network-based Midyear telecom trends show operators looking to increase profits on a number of fronts ranging from new investments, VPN services, enterprises choosing between the technologies should consider factors like Companies are approaching network infrastructure upgrades with SD-WAN deployment, but a new survey shows they're weighing issues Sign in for existing members.

Step 2 of More on using ping Learn to troubleshoot Windows network connectivity using ping commands. This was last published in November Can putting video in the cloud save WAN bandwidth? Growth of video drives increased bandwidth needs Should you allow video traffic over your enterprise WAN?

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Gathering ping latency test measurements Now that you understand the network tool, you can gather ping latency test measurements. While ping's only job is to generate the echo command across the network, you will still find that the ping utility has multiple options -- most if not all of which we can safely ignore. Measuring latency with the ping utility. Beyond its most common use to determine connectivity, the ping utility can serve as a quick and dirty tool to measure latency - how long it takes one packet to get from X to Y. Latency information is reported directly by ping . To check that there’s no issue with your computer’s network adapter or connection These results can be useful in advanced troubleshooting for latency issues, but the fact that the ping test returned results means that your computer is able to connect to that address. or use the COMMAND+C shortcut on your keyboard to copy your text.