[  484.753248] netdevsim netdevsim271 eni271np1: renamed from eth0
[  484.854185] netdevsim netdevsim631 eni631np1: renamed from eth1
[  485.182433] Could not find device with ifindex 2000 in netnsfd 11
[  485.182578] Could not find netns with fd: 2000
[  485.182660] Cannot link a netdevsim to itself
[  485.182780] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).