Hi,
after an update to PROXMOX 6.3 we encounter a huge number of dropped packets on the tap<vmid> interface within all of our PROXMOX hosts.
3 of our 5 hosts are connected to the outside world; namly : kuririn, piccolo and vegeta.
We see espescially high drop rates on the NICs taking care of the internet traffic. Those are VM#211, 212 and 213
I found another Post which might be related : https://forum.proxmox.com/threads/dropped-over-mtu-packet-1501-1500.83087/#post-367334
But we do not have any MTU drop messages within kmesg atm.
Does anybody hav an idea on how to troubleshoot logs and package TX-DRP on virtual tap<vmid> nics?
THX
Alex
after an update to PROXMOX 6.3 we encounter a huge number of dropped packets on the tap<vmid> interface within all of our PROXMOX hosts.
3 of our 5 hosts are connected to the outside world; namly : kuririn, piccolo and vegeta.
We see espescially high drop rates on the NICs taking care of the internet traffic. Those are VM#211, 212 and 213
I found another Post which might be related : https://forum.proxmox.com/threads/dropped-over-mtu-packet-1501-1500.83087/#post-367334
But we do not have any MTU drop messages within kmesg atm.
Does anybody hav an idea on how to troubleshoot logs and package TX-DRP on virtual tap<vmid> nics?
THX
Alex
Code:
root@kuririn:~# netstat -i
Kernel Interface table
Iface MTU RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1 1500 52943267 142 0 0 55313390 0 0 0 BMRU
eno2 1500 6422 0 0 0 148 0 0 0 BMU
ens4f0np 1500 224758929 0 1467 0 490659622 0 0 0 BMRU
ens4f1np 1500 8975834976 0 80 0 7624115993 0 0 0 BMRU
lo 65536 29284594 0 0 0 29284594 0 0 0 LRU
tap211i0 1500 98973187 0 0 0 314978171 0 2285255 0 BMPRU
tap214i0 1500 216428369 0 0 0 81208123 0 1521008 0 BMPRU
vmbr0 1500 22050530 0 0 0 34956844 0 0 0 BMRU
Code:
root@piccolo:~# netstat -i
Kernel Interface table
Iface MTU RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1 1500 48521384 139 0 0 49472107 0 0 0 BMRU
eno2 1500 6401 0 0 0 147 0 0 0 BMU
ens4f0np 1500 190958221 0 0 0 434845408 0 0 0 BMRU
ens4f1np 1500 7975153363 0 454 0 7849168471 0 0 0 BMRU
lo 65536 28786729 0 0 0 28786729 0 0 0 LRU
tap212i0 1500 113576337 0 0 0 146874852 0 5204491 0 BMPRU
tap215i0 1500 55135550 0 0 0 51658417 0 1315592 0 BMPRU
vmbr0 1500 7461499 0 0 0 96061059 0 0 0 BMRU
Code:
root@gohan:~# netstat -i
Kernel Interface table
Iface MTU RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1 1500 51343372 127 0 0 49828839 0 0 0 BMRU
ens4f0np 1500 383647168 0 0 0 597914869 0 0 0 BMRU
ens4f1np 1500 3173449049 0 0 0 3330177277 0 0 0 BMRU
lo 65536 31483942 0 0 0 31483942 0 0 0 LRU
tap218i0 1500 16827285 0 0 0 14701038 0 29698 0 BMPRU
vmbr0 1500 6008351 0 0 0 27439916 0 0 0 BMRU