NIC speed

[tincboy]

I rent a server in a data center and ordered the server with 1Gbps port, but it seems that the NIC that is detected by Proxmox is 100 Mbps, I just need to know if it's possible that Proxmox detect a 1000 Mbps NIC as 100 Mbps?
here it's the output of "ethtool eth0":
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 2
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbag
Wake-on: g
Current message level: 0x00000001 (1)
Link detected: yes

What do you think?

 

[udo]

Hi,
looks similiar on one server here (not an proxmox-server), but the agreement is only with 100MBit uplink port.

ethtool eth0           
Settings for eth0:
        Supported ports: [ MII ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 2
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: d
        Link detected: yes

Udo

 

[tincboy]

Thanks Udo,
I didn't clearly understand, Does the server you've mentioned has 1000 Mbps NIC? And do you mean ethtool has wrong output?

 

[udo]

Thanks Udo,
I didn't clearly understand, Does the server you've mentioned has 1000 Mbps NIC? And do you mean ethtool has wrong output?

Hi,
ethtool has the rigth output. The server has 1Gbit NICs (Supported link modes: 1000baseT), but we have only 100MBit uplink - i think they simply use a 100MBit switch, or set the switchport to 100Mbit (Speed: 100Mb/s).

Udo