[  488.057799] netdevsim netdevsim498 eni498np1: renamed from eth0
[  488.058102] netdevsim netdevsim667 eni667np1: renamed from eth1
[  488.143916] Could not find device with ifindex 2000 in netnsfd 11
[  488.144011] Could not find netns with fd: 2000
[  488.144053] Cannot link a netdevsim to itself
[  488.144101] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).