[  484.416269] netdevsim netdevsim266 eni266np1: renamed from eth0
[  484.417079] netdevsim netdevsim752 eni752np1: renamed from eth1
[  484.508539] Could not find device with ifindex 2000 in netnsfd 11
[  484.508610] Could not find netns with fd: 2000
[  484.508653] Cannot link a netdevsim to itself
[  484.508709] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).