A challenge with any type of network testing, including wi-fi, is that
iperf finds the weakest link in the end/end path. If you use underpowered
CPU for iperf clients and servers you're no longer testing the network
layer but testing iperf as the traffic generator, or more specifically,
testing the network stack running on a operating system and CPU of the
traffic src/snk.
We go to a lot of lengths to make sure our traffic generators are never the
weakest link. I'd suggest a similar philosophy here. Though I could be
misunderstanding your goals.
As far as compiling iperf for openwrt on MRT3020, I don't have any
experience there and can't help much. Though if somebody tries and has
issues, I may be able to help find out why it's not working.
Bob
On Thu, Jan 12, 2017 at 2:01 PM, Ray Woods <[email protected]> wrote:
> [image: Auto Test Setup.jpg]Yes, so I'm trying to install iperf on
> openwrt as you describe as in Host(iperf client) Ethernet -> TP -> WLAN ->
> 4G Router -> Ethernet -> Host(iperf server). Objective: I am trying to
> automate a remote speed test on a 4G network using a TPlink MR3020 router
> running iperf. The 4G router is the device being tested. I have
> successfully installed openwrt on the MR3020 so the idea now is to get
> Iperf running. If I can get iperf running on the 3020 then I can hopefully
> right a script that on boot up will (1) start iperf, (2) Iperf runs a speed
> test on the 4G router and (3) forward the results to a remote server.
>
>
> On Fri, Jan 13, 2017 at 10:12 AM Bob McMahon <[email protected]>
> wrote:
>
>> I guess I don't understand. Can you use Host(iperf client) Ethernet ->
>> TP -> WLAN -> 4G Router -> Ethernet -> Host(iperf server)
>>
>> I'm thinking the TP may outperform the L2 bridging vs it's CPU
>> originating the traffic.
>>
>> Bob
>>
>> On Thu, Jan 12, 2017 at 2:35 AM, Ray Woods <[email protected]> wrote:
>>
>> Thanks Bob, In my case I want to use the TP-LINK router as the client
>> running Iperf so that I can perform remote speed tests on 4G Wireless
>> router. I was going to use a Raspberry pi running Iperf but the TP-Link
>> router is cheaper.
>>
>> Ray
>>
>> On Thu, Jan 12, 2017 at 11:12 AM Bob McMahon <[email protected]>
>> wrote:
>>
>> Sorry, can't help with iperf running the router itself. What we usually
>> do for wi-fi is run iperf on a host attached to the lan or wan port. One
>> thing this allows is better CPUs as the router CPUs can be a bit
>> under-powered.
>>
>> Bob
>>
>> On Wed, Jan 11, 2017 at 2:22 AM, Ray Woods <[email protected]> wrote:
>>
>> Hi Can anyone point me in the right direction on how to run Iperf on a
>> TP-link Router MR3020.
>>
>> Many Thanks
>>
>> Ray
>>
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