This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.Jetstream switches - ongoing major rate limiting bug
This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
On multiple models of Jetstream switches, including TL-SG3428 and T1600-28PS (>=v3 only, v1 and 2 are ok), I've noticed that rate limiting a port results in it running extremely slowly regardless of the rate limit speed chosen. For example, if I rate limit to 499968Kbps in both direction on a single port, and then test the speed using iperf the result is 8.26 Mbits/sec. If I run the same iperf without rate limiting it's up to 900Mbps.
I posted about this once before here in relation to the T1600G v3 models, but ended up using v1 models off ebay as a workaround. Now a year later I want to use new hardware and assumed the TL-SG3428 wouldn't have the same issue, but sadly it does! I know it's not a config mistake on my part as the same config works perfectly on T1600G v1 models.
Attached are some screenshots showing results.
Question is, how and should I bother reporting this to TP-Link? Do they fix issues like this or should I change brand?
Hi @Fae
The new firmware was released on the 18/11/22, so I have just installed it and tested the bandwidth limiting. Although it now doesn't reduce the port speed to a tiny speed whatever the setting, there is still an issue. If I set the bandwidth limit to 299968Kbps and then test using iperf, I notice that the bandwidth fluctuates up and down, and that the overall bandwidth test result is 247Mbps, not 299Mbps as expected.
For comparison I plugged in a V2 T1600G and did the same test and on that it worked as expected: the test speed shows as 299Mbps and it doesn't fluctuate during the test.
Please can you check with engineering what the issue is, and if it will ever be fixed truly? I've attached a screenshot showing the tests and different results.
Thanks
