[ 1240.448254][T12612] netdevsim netdevsim615 eni615np1: renamed from eth1
[ 1240.573817][T12616] netdevsim netdevsim478 eni478np1: renamed from eth0
[ 1243.333903][T12604] Could not find device with ifindex 2000 in netnsfd 11
[ 1243.335040][T12604] Could not find netns with fd: 2000
[ 1243.335926][T12604] Cannot link a netdevsim to itself
[ 1243.337011][T12604] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).