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How many times have you received a call from an unhappy user about poor call quality? If you’ve deployed any kind of VoIP system, then the answer is probably more than you want. Unfortunately, up until this point, there has not been a good way to troubleshoot poor VoIP performance without using invasive network probes or…
If you’ve deployed VoIP at any level then it is quite likely that you have received complaints about poor call quality. How exactly does one measure VoIP call quality and how does one go about troubleshooting the cause of the poor quality? VoIP Metrics Maintaining high quality VoIP calls can be difficult as VoIP is more…
We took a device down for maintenance and it never sent an alert. I checked the history and there were no events for when it was down. the only events were for 50% packet loss. In the packet loss history though, it shows packet loss at 100% for 12 hours. Is there a reason why this would show as 100% packet loss but never…
I have NPM and APM installed in my environment, can someone please let me know how to extract report about Packet loss and latency on my WAN nodes. These nodes are mainly VSAT modems and cisco routers.
I know there are discussions on this matter but they all seem outdated. I was hoping to see what people are doing these days to stop the billion packet loss alerts that come in for every single child node during a site outage. I currently have manually set up all my dependencies and while I do not get the billion "node is…
I have one Windows 2008 R2 node where NPM sends a "Node is experiencing high packet loss" alert. Again, it's a Windows 2008 R2 machine hosted on vSphere ESXi 5.0 with a vmxnet adapter. NPM is 11.0.1. Several other nodes have the same configuration, Same NIC adapter, same host, same or greater utilization. This node…
Hi, I would like to know if there is a way to monitor packet loss and alert only if the packet loss continues for at least 5 minutes above the configured warning and critical thresholds, but still alert me if a node is down over the course of 60 seconds?
We recently started getting errors from SAM/NPM where it'd report a bunch of nodes "down" - because it couldn't ping them. Some sort of network congestion (that was perfectly healthy for years before last week): high response time on multiple nodes, high number of errors, some applications going down as well. Would…
Hi All, I am a bit confused with Packet Loss monitoring. On my node page I have a radial dial, which shows Packet Loss (see below). If I click on it - it will open a chart (see below). Q1: It seems like radial dial is displaying average, rather then last value. If that's the case - would it be more usable to give it a name…
I have a 3rd party that I connect with that I need to monitor RTT and packet loss on. The setup is basically this: 3750X -> 3rd party router Currently when we are experiencing an issue I have to go on the 3750X and source ping addresses on their network to confirm what I can get to. I have setup an icmp-echo IP SLA on the…
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