2% dropped packages - inbound_packets_dropped_ratio

masgo

Well-Known Member
Jun 24, 2019
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I am using netdata to monitor my PVE hosts. On some of them I am getting inbound_packets_dropped_ratio warnings because 2 % of packets are dropped. Any idea why?

Here is my setup:
Each host has 2 NICs, first is mapped to vmbr0, second to vmbr1.
vmbr1 is only used for PVE traffic. It is connected to a switch which only connects to other VPE hosts of the same cluster. No router. I guess we can ignore it.
vmbr0 is VLAN aware and used for VMs as well as for some PVE traffic.

vmbr0.19 is used to access the PVE frontend. This is where the package drops happen.

All VMs have a VLAN tag configured.

Here is my config:

Code:
 cat /etc/network/interfaces
# network interface settings; autogenerated
# Please do NOT modify this file directly, unless you know what
# you're doing.
#
# If you want to manage parts of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT read its network
# configuration from sourced files, so do not attempt to move any of
# the PVE managed interfaces into external files!

auto lo
iface lo inet loopback

iface enp1s0f0 inet manual

iface enp1s0f1 inet manual

iface eno1 inet manual

auto vmbr0
iface vmbr0 inet manual
        bridge-ports enp1s0f0
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094

auto vmbr1
iface vmbr1 inet static
        address 10.20.30.44/24
        bridge-ports enp1s0f1
        bridge-stp off
        bridge-fd 0

auto vmbr0.19
iface vmbr0.19 inet static
        address 192.168.19.44/24
        gateway 192.168.19.10
 

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