[  509.636431] netdevsim netdevsim644 eni644np1: renamed from eth1
[  509.732917] netdevsim netdevsim334 eni334np1: renamed from eth0
[  509.929197] Could not find device with ifindex 2000 in netnsfd 11
[  509.929356] Could not find netns with fd: 2000
[  509.929428] Cannot link a netdevsim to itself
[  509.929514] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).