NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
MS510TXPP not getting more than 1Gb on 5G End to End
EDIT: Tried posting yesterday, doesn't show up in the board. This is my 2nd attempt. Hi, I have two switches in two locations, CAT6A copper between them in the 10GbE port approx 35m cable lengt...
Two things hit my eyes:
1. The server does not announce the 2.5G and 5G link modes - suspect this isn't a multiGig capable adapter and/or driver:
Settings for enp2s0: Supported ports: [ TP ] Supported link modes: 100baseT/Full 1000baseT/Full 10000baseT/Full Supported pause frame use: Symmetric Supports auto-negotiation: Yes Advertised link modes: 100baseT/Full 1000baseT/Full 10000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Speed: 5000Mb/s
2 The switch interconnect on that xg9 (the 10G port, #9) does link/negotiate on 1G only why ever (that's the obvious bottleneck) as you correctly spotted:
ifIndex 9 Port Type Normal Port Channel ID Not a LAG member Port Role Designated STP Mode Enabled STP State Forwarding Admin Mode Up LACP Mode Disabled Physical Mode 10000 Mbps Full Physical Status 1000 Mbps Full Link Status Up
This isn't about yet another speed test - it's about finding the issues: Adapter/driver resp. cable/patches...
It's a true multigig adapter, that's certain. I found an old mellanox 10G card with a twinax that I inserted into another server (and in SW01) in the offsite location, and the iperf3 test was up to 4,7gbit. I did the same with the client, on SW02. So I've excluded the cable, nic and the server as a cause (in both sites). - Which leaves the switch interconnect.
Physical Mode 10000 Mbps Full Physical Status 1000 Mbps Full
So you mean that Physical Status reflects the actual speed?
I checked the 5G port for the server (which I just benchmarked at 5G) and it reports the same:
Physical Mode 5000 Mbps Full Physical Status 1000 Mbps Full
If the cable was bad, wouldn't there be a lot of transmission errors in the port details?
And if the cable was bad, wouldn't it negotiate a lower speed (i.e physical mode)?
Is there a way to "force" lower speed on the port?
matslundqvist wrote:Is there a way to "force" lower speed on the port?
This is prohibited by the IEEE standard my friend - autonegoation is mandatory from GbE and up.
Open a ticket with Netgear please.
Already considered a firmware update to the current 6.7.0.50 btw.?
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
