Very Poor Performance on VLAN Routing

bingo600

My SMB "rant" was not meant for you, in particular.
It was gathered , from many job debug situations , where 95% of the SMB tests , were proven wrong by iperf. But it takes a lot of convincing to get a M$ Admin to accept that iperf is the way to go, when testing network performance.

KDB9000

@bingo600 said in Very Poor Performance on VLAN Routing:

@kdb9000

My SMB "rant" was not meant for you, in particular.
It was gathered , from many job debug situations , where 95% of the SMB tests , were proven wrong by iperf. But it takes a lot of convincing to get a M$ Admin to accept that iperf is the way to go, when testing network performance.

I wasn't sure, but I know some people might pick it up and run with it. And I know what you mean, we have to fight with out Database people about the Storage system (they keep blaming performance issues on Storage when we do not see any issues related to it). We did find issues with the Databases that we brought to their attention, and after that most of the issues stopped or it wasn't as bad as it was.

bingo600

@kdb9000

Did you see this one
https://www.reddit.com/r/synology/comments/f2s6nv/only_getting_1gbit_transfer_speeds_rather_than/

Something about SMB signing

KDB9000

@bingo600 said in Very Poor Performance on VLAN Routing:

@kdb9000

Did you see this one
https://www.reddit.com/r/synology/comments/f2s6nv/only_getting_1gbit_transfer_speeds_rather_than/

Something about SMB signing

SMB Signing is related to Domains (as far as I can tell and something that was mentioned in the Reddit you sent). One of the Synology troubleshooting guides mentioned SMB Signing as well, but it was only if the Synology was part of a Domain setup.

bingo600

@kdb9000

Re iperf install

https://www.synology.com/en-global/knowledgebase/DSM/tutorial/Compatibility_Peripherals/What_kind_of_CPU_does_my_NAS_have

DS1817+ Intel Atom C2538 Quad Core 4 Yes Avoton DDR3 2/8 GB

Do you see any Avoton arch - iperf packages

johnpoz

@bingo600 said in Very Poor Performance on VLAN Routing:

DS1817+ Intel Atom C2538 Quad Core 4 Yes Avoton DDR3 2/8 GB

http://www.jadahl.com/iperf-arp-scan/DSM_6.2/iperf_avoton-6.2_3.7-1.spk

Install that spk, then ssh to your nas, then just run iperf3 -s

Then hit your nas IP from linux or windows client also running iperf.. I compile iperf3 for windows myself..

Here is that
iperf3.9_64.zip

KDB9000

@bingo600 said in Very Poor Performance on VLAN Routing:

@kdb9000

Re iperf install

https://www.synology.com/en-global/knowledgebase/DSM/tutorial/Compatibility_Peripherals/What_kind_of_CPU_does_my_NAS_have

DS1817+ Intel Atom C2538 Quad Core 4 Yes Avoton DDR3 2/8 GB

Do you see any Avoton arch - iperf packages

@johnpoz said in Very Poor Performance on VLAN Routing:

@bingo600 said in Very Poor Performance on VLAN Routing:

DS1817+ Intel Atom C2538 Quad Core 4 Yes Avoton DDR3 2/8 GB

http://www.jadahl.com/iperf-arp-scan/DSM_6.2/iperf_avoton-6.2_3.7-1.spk

That one worked. Is there a specific way to turn on the server part (do I need to do it from the command line or is it just always running)?

johnpoz

see my post above yours ;) I edited it.

from the client you would run iperf3 -c ipaddressofnas

edit: To @bingo600 rant on smb tests.. I really agree there... While slow smb transfers of can be a symptom of network problems. It doesn't prove that there is a network issue..

If you do an iperf and its slow - then that can explain your slow smb. If your your iperf test shows the network is fine for speed, then your slow smb problem is something else..

The iperf you showed are not normal for a gig network... So something is clearly not right there..

But lets see test from device A to B on the same network - this should be 940ish maxed out if everything is perfect.. But as long as your in the 800's - could just be driver issue, etc.. Maybe you need to do some tweaking of the driver settings or something. But if you were seeing 800ish on your network... You should be seeing more than 80MBps -- should be 100 or so.. And you sure shouldn't be seeing wild fluctuations in the transfer

KDB9000

@johnpoz said in Very Poor Performance on VLAN Routing:

see my post above yours ;) I edited it.

from the client you would run iperf3 -c ipaddressofnas

Not sure which post you are referring to. When I try and run the test to the Synology, I get connection refused (I have it installed and it says it is running).

johnpoz

And are you running firewall on your NAS?

KDB9000

@johnpoz said in Very Poor Performance on VLAN Routing:

And are you running firewall on your NAS?

No, it is disabled.

bingo600

@kdb9000 said in Very Poor Performance on VLAN Routing:

@johnpoz said in Very Poor Performance on VLAN Routing:

see my post above yours ;) I edited it.

from the client you would run iperf3 -c ipaddressofnas

Not sure which post you are referring to. When I try and run the test to the Synology, I get connection refused (I have it installed and it says it is running).

Now .. Your pfSense or your NAS isn't blocking the iperf packages ?
I usually "cheat" and run iperf as root ... Not that that would help if iptables is blocking.

/Bingo

johnpoz

Are you running it through pfsense? - port 5201 is the default port.. That will have to be allowed, but refused points to OS sending back icmp saying NO. Ie an OS firewall. If your trying to use a 2.x client on your test client the port is different.. You need to use iperf3 on both client and server - the nas version is 3.7, I uploaded windows 3.9 version which work fine together.

KDB9000

@johnpoz said in Very Poor Performance on VLAN Routing:

Are you running it through pfsense? - port 5201 is the default port.. That will have to be allowed, but refused points to OS sending back icmp saying NO. Ie an OS firewall. If your trying to use a 2.x client on your test client the port is different.. You need to use iperf3 on both client and server - the nas version is 3.7, I uploaded windows 3.9 version which work fine together.

@bingo600 said in Very Poor Performance on VLAN Routing:

@kdb9000 said in Very Poor Performance on VLAN Routing:

@johnpoz said in Very Poor Performance on VLAN Routing:

see my post above yours ;) I edited it.

from the client you would run iperf3 -c ipaddressofnas

Not sure which post you are referring to. When I try and run the test to the Synology, I get connection refused (I have it installed and it says it is running).

Now .. Your pfSense or your NAS isn't blocking the iperf packages ?
I usually "cheat" and run iperf as root ... Not that that would help if iptables is blocking.

/Bingo

It is from the system on the same network (so not pfSense at this point). Running a "netstat -nato" on the Synology, I don't see it listening on port 5201. I am using 3.1.3 on Windows.

johnpoz

@kdb9000 said in Very Poor Performance on VLAN Routing:

I don't see it listening on port 5201

Then its not running..

You see this?

ash-4.3# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------

From another ssh prompt, you should see it running

netstat -anl | grep 5201
tcp6       0      0 :::5201                 :::*                    LISTEN

bingo600

@kdb9000

The "server usually" shows what port it listens on

iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------

KDB9000

@johnpoz said in Very Poor Performance on VLAN Routing:

@kdb9000 said in Very Poor Performance on VLAN Routing:

I don't see it listening on port 5201

Then its not running..

You see this?
ash-4.3# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------

It said running in the GUI. I asked if I needed to run it from the Synology, but you just said to see the post above mine.

bingo600

Is there an echo in here

johnpoz

hehee - Yeah something getting missed. I clearly gave instructions in my post

And I also uploaded the lastest 3.9 version for windows.. not sure why you would be running some old 3.1 version ;) Are you on linux - if so I Know they have later than 3.1 available

bingo600

@KDB9000
@johnpoz said in Very Poor Performance on VLAN Routing:

@bingo600 said in Very Poor Performance on VLAN Routing:

DS1817+ Intel Atom C2538 Quad Core 4 Yes Avoton DDR3 2/8 GB

http://www.jadahl.com/iperf-arp-scan/DSM_6.2/iperf_avoton-6.2_3.7-1.spk

Install that spk, then ssh to your nas, then just run iperf3 -s

Then hit your nas IP from linux or windows client also running iperf.. I compile iperf3 for windows myself..

There was a slight hint in the post