Poor WebGUI/Network performance with intel I219-V

[maomaocake]

Hello,
I have 3 servers

pve1 running a Xeon 2670v3 X99(C612) platform and a realtek nic

lspci
06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller

and 2 more (pve2 and pve3) running a pentium just for ceph nodes
However the webGUI lags suddenly and randomly.

 lspci
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-V

after some digging I found that this line is being repeated multiple time in dmesg

 [ 3804.655696] vmbr0: received packet on enp0s31f6 with own address as source address (addr:88:88:88:88:87:88, vlan:0)

This leads me to believe that there may be an internal bottleneck on the nic which causes my problem.

**edit pveversions is

pve-manager/7.1-10/6ddebafe (running kernel: 5.13.19-2-pve)

** edit2 these systems are fresh installs and not in a cluster because i put them in a cluster and 1 they dont show up as online when they actually were

 

[maomaocake]

Turns out proxmox is assigning the same mac address to vmbr0 and that causes some conflict so all you need to do to fix this is just

apt install macchanger
macchanger -r vmbr0

this has to be done after every reboot

alternatively
edit the /etc/network/interfaces file and add a new field called hwaddress ether

 

[atrain]

Hello,

I am experiencing a similar issue. I have a single NIC and am attempting to configure multiple vlans on the linux bridge. I have followed the recommendations to configure different mac address for each vlan and for the bridge, as I also thought I was experiencing tcp connectivity issues due to mac address associated with multiple IPs, but this does not seem to be the case. I also have a I219-V NIC.

Any insight would be appreciated!

Thanks,