Lan out speed double Wan in speed per Traffic Graph
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More and more interesting. The fact that the throughput graph is balanced indicates that the traffic is probably not being generated by the router. Here are some simple steps to take to isolate the mystery traffic. (You might need a console for these.)
From the console, run "systat -ifstat" (This should match with your WAN/LAN Traffic Graphs BTW. If not, another important discrepancy.)
1. Unplug the WAN interface from the router. Does the mystery traffic persist, or stop?
If it stops, the mystery traffic is definitely related to WAN traffic despite what the graphs appear to indicate. I would try step 3 below with the WAN plugged in to see if a client is also involved.2. If it continues, then leaving the WAN unplugged, unplug the router LAN interface. Does the mystery traffic persist, or stop?
If it continued even with the LAN interface unplugged, try running tcpdump from the console to see what it shows.3. If it stops, plug the router LAN interface back in and unplug everything else from the LAN switch except the router. This keeps keeps the interface up, but traffic should be zero. Does the mystery traffic persist, or stop?
Again, if it persists, try running tcpdump from the console to see what it shows. There should be virtually no traffic as only the only devices involved are the router and the switch.
If it stops, try plugging in the other connections one by one to see which device is "triggering" the mystery traffic. -
I would have this down as a glitch in the LAN graph and not much else. It's happened before and was fixed but I can't find anything on redmine now. Doesn't explain the actual reduced throughput though.
https://forum.pfsense.org/index.php?topic=77744.0
https://forum.pfsense.org/index.php?topic=75607.msg412605#msg412605Steve
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I would have this down as a glitch in the LAN graph and not much else. It's happened before and was fixed but I can't find anything on redmine now. Doesn't explain the actual reduced throughput though.
https://forum.pfsense.org/index.php?topic=77744.0
https://forum.pfsense.org/index.php?topic=75607.msg412605#msg412605Steve
Like what he said, I current have the issue of the Traffic Graph many times being incorrect. The shape of the graph is correct, but many times is 2x or 1/2 the correct value, even though it shows the correct value right next to the graph. So some times it shows 20mb when it's really 10mb, and other times it shows 5mb when it's really 10mb. For me at least, it's not consistent. RRD seems to be correct.
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Despite warnings not to use RealTek adapters with PfSense I had one vacant on the MB. So I switched LAN1 from EM0 to RL0 and the 2x graph problem went away. What does that say about Intel adapters? Not sure we solved this but a work-around is in place. The Intel is the 2-port commercial model and the other port does not exhibit bad behavior. Perhaps they share few components between ports on the adapter board.
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It's almost certainly nothing to do with the NIC hardware or driver. For instance if you had started out using the Realtek NIC and switched to the Intel I imagine the problem would also have gone away. It will be some bug in the code that sends the data to rrdtool.
Steve
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Boy did I miss the adapter names, IGB1 and RE0. I switched back to Intel IGB1 and the 2x problem resumes. Sure it's not the NIC hardware or driver?
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Nope, not sure. ;)
There are many people using Intel NICs without issue though. Try something basic. Go tot eh Status: Interfaces: page and note the values for in/out packets(data) for WAN and LAN. Pass some LAN-WAN traffic. Now check the values again, they should have incremented by the same amount.Steve
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I know this is an old topic but were you able to fix this?
I'm noticing the same behavior on my box (2.1.5 i386) today… WAN is correct, LAN is double.
running systat -ifstat, I see the LAN traffic is double also.. All Intel NICs
Checked vnstat and same deal... looks like its been like this for a while and I've just haven't noticed. Normally I only look at the WAN interface. RRD graphs look correct tho
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Isn't this a bug in FreeBSD?
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=182828
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Interesting… Would this apply to em# interfaces also? If its a bug with FreeBSD then I guess I'll have to wait until I move to 2.2.
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Found the pfSense bug reports. They are for VLANs but I believe the issue is related
https://redmine.pfsense.org/issues/3314
https://redmine.pfsense.org/issues/3264 -
Hi Folks,
FYI bug is back and reported as https://redmine.pfsense.org/issues/10812
Cheers
