[  513.739667] netdevsim netdevsim331 eni331np1: renamed from eth0
[  513.835825] netdevsim netdevsim627 eni627np1: renamed from eth1
[  514.100527] Could not find device with ifindex 2000 in netnsfd 11
[  514.100706] Could not find netns with fd: 2000
[  514.100790] Cannot link a netdevsim to itself
[  514.100879] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).