[  487.954873] netdevsim netdevsim747 eni747np1: renamed from eth1
[  487.956077] netdevsim netdevsim396 eni396np1: renamed from eth0
[  488.024296] Could not find device with ifindex 2000 in netnsfd 11
[  488.024416] Could not find netns with fd: 2000
[  488.024531] Cannot link a netdevsim to itself
[  488.024646] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).