Omada drops SMB Speed randomly
Hi guys,
i am totally annoyed. Following situation, i have a trunas scale system on a dedicated vlan (80) dierectly connected to the switch, on the same switch connected my office pc on a dedicated vlan 40. The Switch is then connected to another Upstream swicth and then to the router, attached youll see the topology.
I measure a raw performance of 2.35 gbits from vlan40 to 80, ok works as expected, but if i download a file via smb often the Speed drops down to 25mbits yes mbits not MB/s, but not every time. I`ve deleted all switch acl`s , tested flow control on/off , changed on all sites the MTU, nothing helps. So then i thougt ok, it can be possible that truenas is the issue, i've measured the disk with hdparm everything is ok. Then i connected my pc direct over ethernet without switch and Gateway and all the time i get full speed.
What can be the isssue in omada, have i the possibility to have more detailled logs?
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Hi @Bhoffmann
Thanks for posting in our business forum.
What file are you transferring? A single and large file or a series of small and separate files? This matters.
Most of the time, it is not a problem with the switch/router. It could be a problem with the protocol and device.
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Hi @Bhoffmann
Thanks for posting in our business forum.
Bhoffmann wrote
Full speed
Low speed:
HW Specs:
Omada Settings, flow control off on all ports, MTU set to 1518 (Standard Value) on all switches
If you change the MTU, it should be set to the same value on all devices that will receive/passthrough the packet.
So, it does not matter as far as I see as you can get a 2.3Gb/s speed on them now.
As this:
Transfer speed is also got affected by the heat and SSD performance if you are using an SSD. For the regular HDD, you get 500MB/s(5Gb/s) transfer which is its hardware limit.
And what would be the avg speed of this transfer in the picture?
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Hi @Bhoffmann
Thanks for posting in our business forum.
What file are you transferring? A single and large file or a series of small and separate files? This matters.
Most of the time, it is not a problem with the switch/router. It could be a problem with the protocol and device.
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thanks for reply. I only tested huge files like iso , mkv, nef. And randomly I get only 1-10mb/s.
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Hi @Bhoffmann
Thanks for posting in our business forum.
Bhoffmann wrote
thanks for reply. I only tested huge files like iso , mkv, nef. And randomly I get only 1-10mb/s.
Where do you connect the device for the test? Mark it out in the diagram?
What kind of CPU does the computer have?
Iperf result, screenshot?
10Mbit/s is ridiculously slow.
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Full speed
Low speed:
HW Specs:
Omada Settings, flow control off on all ports, MTU set to 1518 (Standard Value) on all switches
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- Report Inappropriate Content
Hi @Bhoffmann
Thanks for posting in our business forum.
Bhoffmann wrote
Full speed
Low speed:
HW Specs:
Omada Settings, flow control off on all ports, MTU set to 1518 (Standard Value) on all switches
If you change the MTU, it should be set to the same value on all devices that will receive/passthrough the packet.
So, it does not matter as far as I see as you can get a 2.3Gb/s speed on them now.
As this:
Transfer speed is also got affected by the heat and SSD performance if you are using an SSD. For the regular HDD, you get 500MB/s(5Gb/s) transfer which is its hardware limit.
And what would be the avg speed of this transfer in the picture?
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