[  488.289346] netdevsim netdevsim729 eni729np1: renamed from eth1
[  488.289743] netdevsim netdevsim405 eni405np1: renamed from eth0
[  488.368021] Could not find device with ifindex 2000 in netnsfd 11
[  488.368165] Could not find netns with fd: 2000
[  488.368269] Cannot link a netdevsim to itself
[  488.368384] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).