[  483.170494] netdevsim netdevsim660 eni660np1: renamed from eth1
[  483.269797] netdevsim netdevsim315 eni315np1: renamed from eth0
[  484.239918] Could not find device with ifindex 2000 in netnsfd 11
[  484.240103] Could not find netns with fd: 2000
[  484.240203] Cannot link a netdevsim to itself
[  484.240328] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).