link speed on tab devices

[Carsten Laun-De Lellis]

Hi all

I am new to proxmox and maybe my question seems stupid, but didn't find an answer for my problem.

I have installed proxmox 4.3 on a Dell T120 box. The network card is an Intel I217LM.

The card is connected via CAT6 cable to a gigabit switch. Everything is working fine so far, besides the issue that all tap devices that were created on the server are all in 10mbps connected to the virtual bridge.

As I do have 5 VMs only I want to set the speed to 100mbps, but don't know how to do it.

Any help?

Best regards,
Carsten


output from ethtool:

Settings for eth1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: on (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
root@vmh000001:/etc/network# ethtool tap103i0
Settings for tap103i0:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Speed: 10Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
MDI-X: Unknown
Current message level: 0xffffffa1 (-95)
drv ifup tx_err tx_queued intr tx_done rx_status pktdata hw wol 0xffff8000
Link detected: yes

 

[wbumiller]

The speed of a tap device is not limited to 10Mb/s despite that being reported by ethtool. They aren't hardware devices and don't really have a fixed speed. You can, however, use rate limiting features available in the GUI if you want to limit VM network traffic.