[  488.317245] netdevsim netdevsim752 eni752np1: renamed from eth1
[  488.414911] netdevsim netdevsim437 eni437np1: renamed from eth0
[  488.633932] Could not find device with ifindex 2000 in netnsfd 11
[  488.634283] Could not find netns with fd: 2000
[  488.634398] Cannot link a netdevsim to itself
[  488.634499] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).