Slow network (100mbit) on Intel 82576

check-ict

Well-Known Member
Apr 19, 2011
102
18
58
Hi,

My server crashed so now I moved the virtual machines to a test server (supermicro 2022G-URF)

Since the VM's are on a NAS, the network speed is very important. However, the Intel 82576 nic on the 2022-URF is only getting 100mbit. How can I set this to 1gbit?

proxmox02:~# pveversion -v
pve-manager: 1.8-18 (pve-manager/1.8/6070)
running kernel: 2.6.32-4-pve
proxmox-ve-2.6.32: 1.8-33
pve-kernel-2.6.32-4-pve: 2.6.32-33
qemu-server: 1.1-30
pve-firmware: 1.0-11
libpve-storage-perl: 1.0-17
vncterm: 0.9-2
vzctl: 3.0.27-1pve1
vzdump: 1.2-13
vzprocps: 2.0.11-2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.14.1-1
ksm-control-daemon: 1.0-6

proxmox02:~# lspci | grep Intel
07:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)
07:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)

atop -d:
NET | eth0 98% | pcki 83610 | pcko 43749 | si 98 Mbps | so 5473 Kbps |
 
Hi,

I had a similar issue on a server.

I found out quickly that my network cables going from my server to my switch were actually not gigabit.

I use "virtio" network card in the VM which gives great performance, depending on VM OS of course.
 

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