[ 1235.293126][T11142] netdevsim netdevsim571 eni571np1: renamed from eth1
[ 1235.315595][T11143] netdevsim netdevsim505 eni505np1: renamed from eth0
[ 1238.668466][T11135] Could not find device with ifindex 2000 in netnsfd 11
[ 1238.669545][T11135] Could not find netns with fd: 2000
[ 1238.670305][T11135] Cannot link a netdevsim to itself
[ 1238.671126][T11135] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).