I have two NICs, one Intel I226 (2.5gbe pci-e) and another Intel I211 (1gbe on-board). Both keep dropping to 100mbps. Using two different types of CAT6 cables connected to a GoodTop 6 Port 2.5Gb Web Managed Switch, tried connecting straight to the ISP ZTE router and the behaviour is the same. I have TPLink access point and the ISP router, both connected to the same switch, and they have no issues maintaining 2.5gbe.
It looks like some power saving features, because when I stress the nics after a couple of seconds of 100%, they jump to 1000 and if there is no load, they go back to 100. The 2500 doesn't seem to go to 2500 unless I force it manually.
I've tried the below, not sure what else to try, would really appreciate some guidance.
Loaded bios defaults/disabled power saving features, thinking one could be the culprit.
Looked in to the web gui of the switch for any power saving options to disable but found nothing.
Tried ethtool -s enp4s0 speed 2500 duplex full autoneg on/off
ethtool --set-eee enp4s0 eee off
root@proxmox:~# ethtool enp4s0
Settings for enp4s0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
2500baseT/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
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: 100Mb/s
Duplex: Full
Auto-negotiation: on
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
MDI-X: off (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
dmesg |grep -i enp4s0
[136496.213329] vmbr2: port 1(enp14s0) entered blocking state
[136496.213337] vmbr2: port 1(enp14s0) entered forwarding state
[136553.580992] vmbr2: port 1(enp14s0) entered disabled state
[136555.979952] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
[136555.980073] vmbr2: port 1(enp14s0) entered blocking state
[136555.980081] vmbr2: port 1(enp14s0) entered forwarding state
[137184.741987] vmbr2: port 1(enp14s0) entered disabled state
[137187.059899] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[137187.372590] vmbr2: port 1(enp14s0) entered blocking state
[137187.372599] vmbr2: port 1(enp14s0) entered forwarding state
[137244.800290] vmbr2: port 1(enp14s0) entered disabled state
[137247.319054] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
[137247.319174] vmbr2: port 1(enp14s0) entered blocking state
[137247.319182] vmbr2: port 1(enp14s0) entered forwarding state
[137414.952844] vmbr2: port 1(enp14s0) entered disabled state
[137417.269715] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[137417.585250] vmbr2: port 1(enp14s0) entered blocking state
[137417.585258] vmbr2: port 1(enp14s0) entered forwarding state
[137475.072982] vmbr2: port 1(enp14s0) entered disabled state
[137477.478892] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
[137477.478998] vmbr2: port 1(enp14s0) entered blocking state
[137477.479006] vmbr2: port 1(enp14s0) entered forwarding state
[137505.121501] vmbr2: port 1(enp14s0) entered disabled state
[137507.494475] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[137507.808004] vmbr2: port 1(enp14s0) entered blocking state
[137507.808014] vmbr2: port 1(enp14s0) entered forwarding state
[137565.396697] vmbr2: port 1(enp14s0) entered disabled state
[137567.806646] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
[137567.806768] vmbr2: port 1(enp14s0) entered blocking state
[137567.806777] vmbr2: port 1(enp14s0) entered forwarding state
[137605.522210] vmbr2: port 1(enp14s0) entered disabled state
[137607.888105] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
It looks like some power saving features, because when I stress the nics after a couple of seconds of 100%, they jump to 1000 and if there is no load, they go back to 100. The 2500 doesn't seem to go to 2500 unless I force it manually.
I've tried the below, not sure what else to try, would really appreciate some guidance.
Loaded bios defaults/disabled power saving features, thinking one could be the culprit.
Looked in to the web gui of the switch for any power saving options to disable but found nothing.
Tried ethtool -s enp4s0 speed 2500 duplex full autoneg on/off
ethtool --set-eee enp4s0 eee off
root@proxmox:~# ethtool enp4s0
Settings for enp4s0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
2500baseT/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
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: 100Mb/s
Duplex: Full
Auto-negotiation: on
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
MDI-X: off (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
dmesg |grep -i enp4s0
[136496.213329] vmbr2: port 1(enp14s0) entered blocking state
[136496.213337] vmbr2: port 1(enp14s0) entered forwarding state
[136553.580992] vmbr2: port 1(enp14s0) entered disabled state
[136555.979952] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
[136555.980073] vmbr2: port 1(enp14s0) entered blocking state
[136555.980081] vmbr2: port 1(enp14s0) entered forwarding state
[137184.741987] vmbr2: port 1(enp14s0) entered disabled state
[137187.059899] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[137187.372590] vmbr2: port 1(enp14s0) entered blocking state
[137187.372599] vmbr2: port 1(enp14s0) entered forwarding state
[137244.800290] vmbr2: port 1(enp14s0) entered disabled state
[137247.319054] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
[137247.319174] vmbr2: port 1(enp14s0) entered blocking state
[137247.319182] vmbr2: port 1(enp14s0) entered forwarding state
[137414.952844] vmbr2: port 1(enp14s0) entered disabled state
[137417.269715] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[137417.585250] vmbr2: port 1(enp14s0) entered blocking state
[137417.585258] vmbr2: port 1(enp14s0) entered forwarding state
[137475.072982] vmbr2: port 1(enp14s0) entered disabled state
[137477.478892] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
[137477.478998] vmbr2: port 1(enp14s0) entered blocking state
[137477.479006] vmbr2: port 1(enp14s0) entered forwarding state
[137505.121501] vmbr2: port 1(enp14s0) entered disabled state
[137507.494475] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[137507.808004] vmbr2: port 1(enp14s0) entered blocking state
[137507.808014] vmbr2: port 1(enp14s0) entered forwarding state
[137565.396697] vmbr2: port 1(enp14s0) entered disabled state
[137567.806646] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
[137567.806768] vmbr2: port 1(enp14s0) entered blocking state
[137567.806777] vmbr2: port 1(enp14s0) entered forwarding state
[137605.522210] vmbr2: port 1(enp14s0) entered disabled state
[137607.888105] igb 0000:0e:00.0 enp14s0: igb: enp14s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
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