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Multiple sflow graphs for different interfaces on same device



I'm currently running the free version of PRTG prior to deciding whether to purchase it. I have a specific requirement - namely showing sflow data from Procurve switches on an interface-by-interface basis. Can you show me how to add multiple sflow sensors for this?

For example, I have two core switches, both with uplink ports that i want to monitor. I can monitor one of them just fine, but when I configure sflow on the other interfaces, nothing seems to happen - no extra sensor is created, and no data pattern changes on the original sensor

multiple-interfaces procurve prtg sflow

Created on May 22, 2014 10:07:00 AM

4 Replies




thank you very muc for your KB-Post. The recommendation is to have both switches send their sflow-packets to different target ports on the PRTG Host. Then set up two Sflow-Sensors, each listing on one of the two target ports of the Sflow-Streams.

best regards.

Created on May 23, 2014 8:23:52 AM by  Torsten Lindner [Paessler Support]




Maybe I wasn't making myself clear enough. This is for multiple ports on the same device (HP Procurve 5308). Here's what I'm running at the moment:

setmib sFlowRcvrAddress.1 -o <HEX> (sets collector IP)
setmib sFlowRcvrPort.1 -i 6200 (sets port number to send stats to)
setmib sFlowRcvrOwner.1 -D prtg sFlowRcvrTimeout.1 -i 100000000 (sets receiver name, receiver timeout and enables receiver)
setmib -i 20 (sets flow sampling rate to 20 on port 48)
setmib -i 1 (sets enable to 'true' on port 48)
setmib -i 10 (sets counter polling to 10 seconds on port 48)

Now, I can't just create a second port to use - the only way I can do that is to change the first port, which means I stop logging traffic on the original port.

Created on May 24, 2014 3:55:26 PM

Last change on May 26, 2014 7:25:10 AM by  Torsten Lindner [Paessler Support]



THen you can do this with two Sflow-Sensors listening to the same stream of sflow-packets, but then using the


-Filter. Please be aware, that the filter only works with numerical values. We cannot say which value represents which interface, this depends on the device and its configuration.

Created on May 26, 2014 7:30:16 AM by  Torsten Lindner [Paessler Support]



Thanks a lot - that works perfectly

Created on May 29, 2014 10:34:52 AM

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