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I use Ookla Speedtest.net all the time at work to help diagnose WAN issues between my sites. Does anyone know of a tool similar to this that can monitor bandwidth between locations on my VLAN? Preferably something that runs in the background and doesn’t hog up a bunch of bandwidth to function. I’d also like to monitor it from my central office. After all, all of my locations get routed through here.

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2

Most firewalls have this ability built in. If you are using VLANs, I’d assume you have managed switches, many of which can also monitor traffic through them.

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Yeah, if you have managed switches, you should be able to monitor bandwidth. There are 3rd party applications, such as PRTG ( www.paessler.com ) that can monitor NETFLOW and other related protocols.

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I use PRTG. It monitors pretty well everything you have an SNMP trap for. Right now I have it showing overallbandwith on my edge devices and net flow to show me who is using what bandwidth. Also shoes disk and datastore read/writes, I/Os, etc.

Kind of a pain in the ass tool though, just so you know.

JR

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5

SolarWinds has a free tool to monitor SNMP for up to 10 nodes. I use that but use PRTG to get more detailed information.

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PRTG has a QoS test that will do exactly what you have asked for.

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+1 for PRTG. If your firewall/router/switch supports NetFlow (or even better IPFIX) PRTG will monitor those too. These sensors are often better than SNMP because NetFlow/IPFIX tracks individual endpoints/apps whereas SNMP just looks at the interface.

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AccelOps could help you here as well. Using SNMP and / or NetFlow/Sflow you can determine bandwidth and what user is consuming the bandwidth and what is the breakdown of the ports, protocols, source, destination, owner of the IP address.

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You can consider ManageEngine OpManager with the NetFlow module. It uses SNMP, NetFlow, sFlow for bandwidth monitoring. OpManager is free for up to 10 devices.

@ManageEngine