[  495.367281] netdevsim netdevsim291 eni291np1: renamed from eth0
[  495.468567] netdevsim netdevsim703 eni703np1: renamed from eth1
[  495.835438] Could not find device with ifindex 2000 in netnsfd 11
[  495.835563] Could not find netns with fd: 2000
[  495.835646] Cannot link a netdevsim to itself
[  495.835740] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).