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How to optimize single client transmit to LAN NAS ?
So new SXR50 is killing my laptop backup jobs. Everything else is great but upload to NAS takes 2-3X longer. Have been investigating by watching windows copy GUI during drag-n-drop of 1G iso file between NAS and client using SMB.
My setup is modem -> 4 x 2.5G router / firewall
-> SXR50 in AP mode.
-> Unused Management port. Could be satellite or NAS if it helped.
-> 1G non-stp vlan switch
-> 2x1G bond to NAS
-> Other wired hosts, AP's.
Wifi 0: MGMT mapped untagged -> 40 in rest of network. Almost unused except unrelated iscsi traffic between firewall and NAS.
Wifi 1: IOT mapped to vlan 10, devices forced to 2G.
Wifi 2: Primary lan on vlan 50.
Wifi 3: Useless to me. Turned off. ( another VLAN would be if it had security ).
Single client wired throughput is 90 MB/S for 1500MTU from switch or 115MB/S using 4K or router port. Hmm thats weird router should not be faster than switch but point is everything except Wifi easily saturates 1G.
Single client throughput from AP's I was trying to replace ( 80Mhz 2x2 AC ) reaches 50-70MB/S depending on distance and power level ( lower better ). It generally follows librespeed results as I expect. Never expected faster, mostly I wanted VLAN support instead of existing 1 VLAN / device using consumer routers in AP mode.
Single client throughput on SRX50 maxes out at ~ 22MB/S with 100% CPU utilization regardless of AC -vs- AX or router -vs- satellite connection and idles at ~ 28% CPU. Ironically that is about what other AP's do at full speed.
At all times I have ~ 50-100 open connections with about 3MB/S on 2G IOT vlan and < 1MB/s random garbage on lan.
Getting satellite to work during setup was really hard. Following hints here and elsewhere I disabled STP on the firewall and thought that was at least partly what made things start working.
What I notice now is that I re-enable STP on firewall the SXR50 CPU utilization drops to about 65% and throughput increases to ~ 33MB/S.
Questions:
- Is it safe to leave firewall in this mode and if so any suggested settings ?
- Is there anything at all I can do to get closer to my 50-70 MB/s baseline ?
- Is there any way to turn down or eliminate all the network probing ? Seems like SXR is lonely and wants to ping everyone once a second. ( Obviously mesh requires STP and monitoring but seems like a lot ).
- If not is there any alternative Netgear product which does support multiple SSID vlans and > 60MB/s ( or even better > 100MB..) throughput ?
Avoid (ab)use such a device for AP config. As you already have a nice network with 2.5 GbE (and Gigabit for the NAS LAD/trunk), think about installing a WAX6xx, or a single (in case you look for a single local managed AP) WAX218 as per your Wi-Fi needs. These AP won't go CPU bound even at full bandwidth.
Can't resist to mention: Better use wired Ethernet instead of Wi-Fi for full system backup processes. You ruin your overall limited radio and band bandwidth on the air otherwise.
Minor one: Strictly stick on the correct units, show the effective units. MB is Megabytes, Mb is Megabits - difference is a factor eight.
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Avoid (ab)use such a device for AP config. As you already have a nice network with 2.5 GbE (and Gigabit for the NAS LAD/trunk), think about installing a WAX6xx, or a single (in case you look for a single local managed AP) WAX218 as per your Wi-Fi needs. These AP won't go CPU bound even at full bandwidth.
Can't resist to mention: Better use wired Ethernet instead of Wi-Fi for full system backup processes. You ruin your overall limited radio and band bandwidth on the air otherwise.
Minor one: Strictly stick on the correct units, show the effective units. MB is Megabytes, Mb is Megabits - difference is a factor eight.
Yes BYTES as measured by Windows File copy GUI. Librespeed shows 750 Mbit down / 400Mbit up but divide by 8 is a bit optimistic. For SMB traffic at 1500MTU I consider bits/10 pretty good due to overhead.
Thank you for confirming WAX series does not have this same limitation. I will stop fighting with trying to figure out why STP impacts CPU load and just get something more appropriate. ( my clients lack ethernet ports and building lacks cable to center *sigh* ).
For benefit of anyone else considering this product please note that if your office has no servers and all you need is to distribute 300 / 30 or perhaps 500 / 50 internet to clients it works well. The radios are rock solid and range good.
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