[  772.063757][T14763] netdevsim netdevsim444 eni444np1: renamed from eth0
[  772.086213][T14764] netdevsim netdevsim609 eni609np1: renamed from eth1
[  772.914903][T14751] Could not find device with ifindex 2000 in netnsfd 11
[  772.915496][T14751] Could not find netns with fd: 2000
[  772.915840][T14751] Cannot link a netdevsim to itself
[  772.916385][T14751] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).