[  488.341036] netdevsim netdevsim331 eni331np1: renamed from eth0
[  488.438320] netdevsim netdevsim568 eni568np1: renamed from eth1
[  488.668086] Could not find device with ifindex 2000 in netnsfd 11
[  488.668349] Could not find netns with fd: 2000
[  488.668437] Cannot link a netdevsim to itself
[  488.668532] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).