[  514.818688] netdevsim netdevsim573 eni573np1: renamed from eth1
[  514.916734] netdevsim netdevsim442 eni442np1: renamed from eth0
[  515.135093] Could not find device with ifindex 2000 in netnsfd 11
[  515.135251] Could not find netns with fd: 2000
[  515.135323] Cannot link a netdevsim to itself
[  515.135425] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).