[  522.351633] netdevsim netdevsim436 eni436np1: renamed from eth0
[  522.448459] netdevsim netdevsim616 eni616np1: renamed from eth1
[  522.672999] Could not find device with ifindex 2000 in netnsfd 11
[  522.673175] Could not find netns with fd: 2000
[  522.673247] Cannot link a netdevsim to itself
[  522.673335] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).