I have a issue on a Proxmox node. It's upgraded with a 10 GBit uplink but the Windows VM's NIC seems to be capped at 1GBit. It does not use the full 10 GBit.
Below is the iperf on the node in Debian:
-----------------%<-----------------
---------------------------------------
Settings for eth1:
Speed: 10000Mb/s
Duplex: Full
Port: Direct Attach Copper
---------------------------------------
Internal speedtest:
https://speedtest.your-server.de/de/test_reports/81a58380a7ce29d3d2f3e588ee[..]
Upload test ( IPv4 ) : 3007.33 Megabit/s
Download test ( IPv4 ) : 1503.39 Megabit/s
---------------------------------------
External speedtest (IPv4):
iperf3 -c speedtest.wtnet.de -p5200 -P100 -4 (standard mode: client sends,
server receives)
Interval Transfer Bitrate Retr
0.00-10.00 sec 10.9 GBytes 9344 Mbits/sec 2035 sender
0.00-10.02 sec 10.9 GBytes 9345 Mbits/sec receiver
iperf3 -c speedtest.wtnet.de -p5200 -P100 -4 -R (reverse mode: server sends,
client receives)
Interval Transfer Bitrate Retr
0.00-10.01 sec 10.7 GBytes 9223 Mbits/sec 2413 sender
0.00-10.00 sec 10.7 GBytes 9216 Mbits/sec receiver
External speedtest (IPv6):
IPv6 is not configured
---------------------------------------
-----------------%<-----------------
Below is my /etc/network/interfaces:
-----------------%<-----------------
---------------------------------------
source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback
iface lo inet6 loopback
auto enp193s0f0
iface enp193s0f0 inet static
address 116.202.235.103
netmask 255.255.255.192
gateway 116.202.235.65
# route 116.202.235.64/26 via 116.202.235.65
up route add -net 116.202.235.64 netmask 255.255.255.192 gw 116.202.235.65 dev
enp193s0f0
auto vmbr0
iface vmbr0 inet static
address 136.243.255.48
netmask 255.255.255.240
bridge_ports none
bridge_stp off
bridge_fd 0
post-up echo 1 > /proc/sys/net/ipv4/ip_forward
post-up iptables -t nat -A POSTROUTING -s '136.243.255.48/28' -o vmbr0 -j
MASQUERADE
post-down iptables -t nat -D POSTROUTING -s '136.243.255.48/28' -o vmbr0 -j
MASQUERADE
auto vmbr1
iface vmbr1 inet static
address 144.76.147.120
netmask 255.255.255.248
bridge_ports none
bridge_stp off
bridge_fd 0
post-up echo 1 > /proc/sys/net/ipv4/ip_forward
post-up iptables -t nat -A POSTROUTING -s '144.76.147.120/29' -o vmbr1 -j
MASQUERADE
post-down iptables -t nat -D POSTROUTING -s '144.76.147.120/29' -o vmbr1 -j
MASQUERADE
---------------------------------------
-----------------%<-----------------
Below is the speedtest on a Windows VPS, here you can see the issue:
Hosted by GameAddicted (Lauterbach) [74.17 km]: 0.84 ms
Testing download
speed................................................................................
Download: 646.24 Mbit/s
Testing upload
speed................................................................................................
Upload: 890.33 Mbit/s
Below is the iperf on the node in Debian:
-----------------%<-----------------
---------------------------------------
Settings for eth1:
Speed: 10000Mb/s
Duplex: Full
Port: Direct Attach Copper
---------------------------------------
Internal speedtest:
https://speedtest.your-server.de/de/test_reports/81a58380a7ce29d3d2f3e588ee[..]
Upload test ( IPv4 ) : 3007.33 Megabit/s
Download test ( IPv4 ) : 1503.39 Megabit/s
---------------------------------------
External speedtest (IPv4):
iperf3 -c speedtest.wtnet.de -p5200 -P100 -4 (standard mode: client sends,
server receives)
Interval Transfer Bitrate Retr
0.00-10.00 sec 10.9 GBytes 9344 Mbits/sec 2035 sender
0.00-10.02 sec 10.9 GBytes 9345 Mbits/sec receiver
iperf3 -c speedtest.wtnet.de -p5200 -P100 -4 -R (reverse mode: server sends,
client receives)
Interval Transfer Bitrate Retr
0.00-10.01 sec 10.7 GBytes 9223 Mbits/sec 2413 sender
0.00-10.00 sec 10.7 GBytes 9216 Mbits/sec receiver
External speedtest (IPv6):
IPv6 is not configured
---------------------------------------
-----------------%<-----------------
Below is my /etc/network/interfaces:
-----------------%<-----------------
---------------------------------------
source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback
iface lo inet6 loopback
auto enp193s0f0
iface enp193s0f0 inet static
address 116.202.235.103
netmask 255.255.255.192
gateway 116.202.235.65
# route 116.202.235.64/26 via 116.202.235.65
up route add -net 116.202.235.64 netmask 255.255.255.192 gw 116.202.235.65 dev
enp193s0f0
auto vmbr0
iface vmbr0 inet static
address 136.243.255.48
netmask 255.255.255.240
bridge_ports none
bridge_stp off
bridge_fd 0
post-up echo 1 > /proc/sys/net/ipv4/ip_forward
post-up iptables -t nat -A POSTROUTING -s '136.243.255.48/28' -o vmbr0 -j
MASQUERADE
post-down iptables -t nat -D POSTROUTING -s '136.243.255.48/28' -o vmbr0 -j
MASQUERADE
auto vmbr1
iface vmbr1 inet static
address 144.76.147.120
netmask 255.255.255.248
bridge_ports none
bridge_stp off
bridge_fd 0
post-up echo 1 > /proc/sys/net/ipv4/ip_forward
post-up iptables -t nat -A POSTROUTING -s '144.76.147.120/29' -o vmbr1 -j
MASQUERADE
post-down iptables -t nat -D POSTROUTING -s '144.76.147.120/29' -o vmbr1 -j
MASQUERADE
---------------------------------------
-----------------%<-----------------
Below is the speedtest on a Windows VPS, here you can see the issue:
Hosted by GameAddicted (Lauterbach) [74.17 km]: 0.84 ms
Testing download
speed................................................................................
Download: 646.24 Mbit/s
Testing upload
speed................................................................................................
Upload: 890.33 Mbit/s