[ 1019.674115][T12132] netdevsim netdevsim403 eni403np1: renamed from eth0
[ 1019.784696][T12069] netdevsim netdevsim549 eni549np1: renamed from eth1
[ 1021.729943][T12552] Could not find device with ifindex 2000 in netnsfd 11
[ 1021.737977][T12552] Could not find netns with fd: 2000
[ 1021.738894][T12552] Cannot link a netdevsim to itself
[ 1021.739734][T12552] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).