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AP50 and AP100 expected throughput

JoelPatterson
Hey guys,
I know this topic has come up several times, but usually it's related to firmware or something similar. I just want to know what's "normal" for AP50/AP100 throughput.

Negotiated speed shown in UTM web interface is 866Mbit. Currently max test ed speed I'm getting on an AP100 is ~75 Mbits/sec. Same for AP50's. This is tested with iperf. Over my Gbit connection with the same iperf setup I get 975+ Mbits/sec.

All AP's are running through gigabit ethernet, showing as 1000 full duplex on the switches. They are bridged to their own VLAN with no throttling that I'm aware of.

Maybe I'm missing some type of config on the switch ports? Jumbo frames? MTU settings? idk, grasping at straws trying to figure out why I can't even get close to the "866 mbit" speed.


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  • 0
    So you were getting good measurements through your gigabit switch.

    One additional thing you can try with iperf is a parrallel test.
    "iperf.exe -c  -P 8"

    That get's me the full 1gig physical connection speed.

    Doesn't do much for my wifi however.

    --------------------
    Private: 1 Mini ITX (EMB-CV1), Atom D2550 1.86 GHz Dual Core CPU, 8GB RAM, UTM 9.3 Home License, AP100
    Business: 2 UTM320 in HA (Active/Passive), Full Guard, 7 AP50's, 1 AP100

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  • 0
    So you were getting good measurements through your gigabit switch.

    One additional thing you can try with iperf is a parrallel test.
    "iperf.exe -c  -P 8"

    That get's me the full 1gig physical connection speed.

    Doesn't do much for my wifi however.

    --------------------
    Private: 1 Mini ITX (EMB-CV1), Atom D2550 1.86 GHz Dual Core CPU, 8GB RAM, UTM 9.3 Home License, AP100
    Business: 2 UTM320 in HA (Active/Passive), Full Guard, 7 AP50's, 1 AP100

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  • 0 in reply to JoelPatterson
    Found the bottleneck. The wifi card is a usb3 device plugged into a usb2.0 port.

    I will change it to a usb 3 port and repeat the tests.

    Ian
  • 0 in reply to RFCat_vk_01
    Hi,
    changed the wifi dongle so it is connected tot a USB 3.0 port. Wifi dongle is about a metre away from the AP50. The UTM is passing the traffic between the wifi seperate zone and the vlan using packet filtering.

    Running iperf defaults I can achieve about 95Mb/s throughput.
    Using larger t values I can achieve about 120Mb/s throughput
    Using -t60 -P15 I can achieve 163Mb/s throughput.
     In summary using -P 10, -W 1900k and -t 120 I was consistently achieving over 150Mb/s throughput.

    Somewhere in my distant past I used ot believe rightly or wrongly that wifi throughout was about 50% of the advertised value and so far with my testing on the Sophos AP50 that agrees.

    Ian M
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