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Performance / Bandwith Throughput issue with "Multipath Rules" and "Uplink Balancing"

nd

Hi all,

 

I have a strange issue with WAN Uplink Balancing and Multipath Rules and I did not found any thread or solution for that.

In my setup I have a Sophos UTM Home for my private usage at home. All works fine and I am very proud to use it because it covers all I want to protect me, my family, devices, etc.

Now I want to use a second WAN / ISP as backup interface primary so I started some tests.

 

WAN1 / ISP1 = 300Mbit/s down

WAN2 / ISP2 (LTE Router, full signal strength) = 50Mbit/s down

 

One of this test scenarios was to use multipath rules to split traffic and devices to ISP1 and ISP2 - for example to route traffic from guest WLAN or some clients to the WAN2 / ISP2....AND keep the ISP2 as backup WAN(2) interface even so beyond.

 

For this I set both as active WAN interfaces with a weight of WAN1 = 100 and WAN2 = 0, further a multipath rule which should affect a group of specified devices (ltf persistance for interface) to use for any traffic the WAN2 interface.

It works....for testing I added my mobile phone...I got the external public IP from the WAN2 router so the traffic uses the right way and route....but the performance and bandwidth is terrible as ***: ~3-5Mbit/s Down, ~10Mbit/s Up.

On the same WLAN with deactivated multipath rule and WAN1 I have full bandwith limited by WLAN AP and signal strength.

A virtual machine which is attached directly over VLAN to the WAN2 router will have full speed of the ISP...dependig on the usage of the LTE network (10-50MBit/s).

Same thing if I add any other machine to the multipath rule: 3-5Mbit/s down.

 

I have attached the configuration of balancing and multipath rule.

The second multipath rule was only for testing...it does not change anything.

  



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  • 0

    Hi  

    Your configuration looks good to me. I don't think there's an issue with it. However, you can check what's the bandwidth available to UTM from the Secondary ISP link. Would you please try this using the SSH access wget --bind-address <ip_address_of_isp2> --no-check-certificate -O - https:\\raw.github.com/sivel/speedtest-cli/master/speedtest.py | python

    It should give you an idea of ISP2 bandwidth to UTM. We can check further if this test shows enough bandwidth.

    Note: Change \\ to // from URL before pasting it in your device.

    Regards

    Jaydeep

  • 0 in reply to Jaydeep

    Thanks for your reply,

    the problem was solved few days after posting my thread. The reason was very freaky: because of some often recuring uplink on / off notifications few months before I changed the bandwith to the LTE Router manually to 100Mbit/s and did not reset this after it doesn´t solve that. So that was the reason for the low bandwith problem here...but why? MTU, etc... I don´t know.

     

    After setting it to auto negotiation the bandwith of LTE WAN is OK and reaches mostly up to 30-50Mbit/s (depending on time and day).

     

     

    Regards Andy

Reply
  • 0 in reply to Jaydeep

    Thanks for your reply,

    the problem was solved few days after posting my thread. The reason was very freaky: because of some often recuring uplink on / off notifications few months before I changed the bandwith to the LTE Router manually to 100Mbit/s and did not reset this after it doesn´t solve that. So that was the reason for the low bandwith problem here...but why? MTU, etc... I don´t know.

     

    After setting it to auto negotiation the bandwith of LTE WAN is OK and reaches mostly up to 30-50Mbit/s (depending on time and day).

     

     

    Regards Andy

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