[  487.489098] netdevsim netdevsim330 eni330np1: renamed from eth0
[  487.589687] netdevsim netdevsim741 eni741np1: renamed from eth1
[  487.974330] Could not find device with ifindex 2000 in netnsfd 11
[  487.974489] Could not find netns with fd: 2000
[  487.974583] Cannot link a netdevsim to itself
[  487.974695] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).