1: When VLAN is configured we only add the VF MAC to the final interface, and not for the underlay
Previously we added it to both. On kernel 4.14-4.18-4.19 this is okay, but maybe older kernels can't tolerate the same MAC added to multiple interfaces in the same netns?
2: Proper sysctl settings are now manually applied on the underlay dummy as well (i.e. IPv6 ON/OFF)
1: When VLAN is configured we only add the VF MAC to the final interface, and not for the underlay Previously we added it to both. On kernel 4.14-4.18-4.19 this is okay, but maybe older kernels can't tolerate the same MAC added to multiple interfaces in the same netns? 2: Proper sysctl settings are now manually applied on the underlay dummy as well (i.e. IPv6 ON/OFF)