[  487.229366] netdevsim netdevsim609 eni609np1: renamed from eth1
[  487.325218] netdevsim netdevsim478 eni478np1: renamed from eth0
[  487.539411] Could not find device with ifindex 2000 in netnsfd 11
[  487.539647] Could not find netns with fd: 2000
[  487.539735] Cannot link a netdevsim to itself
[  487.539825] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).