[  473.373248] netdevsim netdevsim286 eni286np1: renamed from eth0
[  473.373972] netdevsim netdevsim685 eni685np1: renamed from eth1
[  473.450626] Could not find device with ifindex 2000 in netnsfd 11
[  473.450731] Could not find netns with fd: 2000
[  473.450785] Cannot link a netdevsim to itself
[  473.450847] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).