[ 1022.367123][T12478] netdevsim netdevsim504 eni504np1: renamed from eth0
[ 1022.480370][T12476] netdevsim netdevsim651 eni651np1: renamed from eth1
[ 1024.447148][T12470] Could not find device with ifindex 2000 in netnsfd 11
[ 1024.448082][T12470] Could not find netns with fd: 2000
[ 1024.455018][T12470] Cannot link a netdevsim to itself
[ 1024.455866][T12470] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).