vmbr1 speed 10MB

[ahmedelzeki]

hello
i have an speed issue
my network 10GB and proxmox test shown 10GB but VM always result 1GB
i tried ethtool
and here is

vmbr1

root@proxmox:~# ethtool vmbr1
Settings for vmbr1:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: 10Mb/s
Duplex: Unknown! (255)
Auto-negotiation: off
Port: Other
PHYAD: 0
Transceiver: internal
Link detected: yes


vmbr0
root@proxmox:~# ethtool vmbr0
Settings for vmbr0:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: 10000Mb/s
Duplex: Unknown! (255)
Auto-negotiation: off
Port: Other
PHYAD: 0
Transceiver: internal
Link detected: yes


i tried

root@proxmox:~# ethtool -s vmbr1 speed 100 duplex full autoneg off
netlink error: Operation not supported

 

[Moayad]

Hello,

Can you please provide us with the VM config?
Which tool are you using for testing?
Does the Firewall on PVE run? if yes, have you tried to stop it?

 

[fabian]

a bridge will always show the highest speed of its ports. if your vmbr1 only has ports with at most 10mbit (such as virtual NICs in the form of tap devices) it will reflect this. this doesn't mean that traffic cannot flow faster than that, the link speed is just pretty much meaningless for virtual devices.