[ 1017.550109][T12583] netdevsim netdevsim491 eni491np1: renamed from eth0
[ 1017.670960][T12582] netdevsim netdevsim515 eni515np1: renamed from eth1
[ 1019.434857][T12575] Could not find device with ifindex 2000 in netnsfd 11
[ 1019.435835][T12575] Could not find netns with fd: 2000
[ 1019.436533][T12575] Cannot link a netdevsim to itself
[ 1019.437341][T12575] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).