[  484.367157] netdevsim netdevsim355 eni355np1: renamed from eth0
[  484.468100] netdevsim netdevsim673 eni673np1: renamed from eth1
[  484.789239] Could not find device with ifindex 2000 in netnsfd 11
[  484.789375] Could not find netns with fd: 2000
[  484.789450] Cannot link a netdevsim to itself
[  484.789531] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).