'br-int' Packet Loss Observed

Problem

Packet drops are observed on the br-int (integration bridge) interface of the hypervisors

Environment

• Platform9 Managed OpenStack - v4.0 and Higher
• Open vSwitch

Cause

The br-int interface does not have networking configuration and its status is DOWN. Any broadcast/multicast packet hitting this interface will get dropped causing the counter to increment.

$ ip -s link show br-int30: br-int: [BROADCAST,MULTICAST] mtu 1450 qdisc noop state DOWN mode DEFAULT group default qlen 1link/ether ae:5c:09:cb:a5:43 brd ff:ff:ff:ff:ff:ffRX: bytes packets errors dropped overrun mcast 0 0 0 4732073 0 0 TX: bytes packets errors dropped carrier collsns 0 0 28635 0 0 0

Resolution

An increase in the number of drop packets should not cause any networking issue and can be safely ignored.