Hi everyone, we have a Supmermicro X10SRA-F, with a Intel I210 Ethernet controller, gigabit interface, switch and router.
We are using kernel 3.10.0-862.6.3.el7.x86_64, and detected really slow bandwidth (25~12 Mbit/s), but with a debian live usb in the same server we have 610 Mbit/s.
We manually updated to latest Intel driver (igb-5.3.5.18), and nothing changed.
Any thoughts? we are lost.
Thank you
Agu
Slow ethernet bandwith Centos 7
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- Posts: 2019
- Joined: 2015/02/17 15:14:33
- Location: Bulgaria
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Re: Slow ethernet bandwith Centos 7
Paste ethtool's output. Maybe, there is a problem with the negotiation between NIC and the other side.
Re: Slow ethernet bandwith Centos 7
Hi @hunter86_bg my ethtool output is:
Settings for eno1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: off (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
As far as I can see, everything looks ok.
Settings for eno1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: off (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
As far as I can see, everything looks ok.
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- Posts: 2019
- Joined: 2015/02/17 15:14:33
- Location: Bulgaria
- Contact:
Re: Slow ethernet bandwith Centos 7
Seems ok. Is there anything in the statistics (-S)?
Also run 'ethtool -i'.
Also run 'ethtool -i' under the debian live media to crosscheck which module is used.
Also run 'ethtool -i'.
Also run 'ethtool -i' under the debian live media to crosscheck which module is used.
Re: Slow ethernet bandwith Centos 7
What are you using to measure the bandwidth?
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Re: Slow ethernet bandwith Centos 7
Hi everyone, thank you for your responses.
I installed CentOS 7.4, CentOS 6.5, Fedora Server 28, Ubuntu 18.04 and Debian 9.4, and checked that I had slow bandwidth in CentOS's and fedora, but good bandwidth in Debian and Ubuntu.
Ethtoot statistics looks fine in every installation, drivers were the same... so I decided to chance the method to measure bandwidth.
For some strange reason sppedtest-cli [1] shows slow bandwidth in CentOS and Fedora (RH family?) but works fine on Debian's family, using scp from other computer in the network I had 1 gbps with all systems.
Sorry for the inconvenience.
Thank you all for your time
[1] https://pypi.org/project/speedtest-cli/
I installed CentOS 7.4, CentOS 6.5, Fedora Server 28, Ubuntu 18.04 and Debian 9.4, and checked that I had slow bandwidth in CentOS's and fedora, but good bandwidth in Debian and Ubuntu.
Ethtoot statistics looks fine in every installation, drivers were the same... so I decided to chance the method to measure bandwidth.
For some strange reason sppedtest-cli [1] shows slow bandwidth in CentOS and Fedora (RH family?) but works fine on Debian's family, using scp from other computer in the network I had 1 gbps with all systems.
Sorry for the inconvenience.
Thank you all for your time
[1] https://pypi.org/project/speedtest-cli/