[  488.290859] netdevsim netdevsim649 eni649np1: renamed from eth1
[  488.386543] netdevsim netdevsim379 eni379np1: renamed from eth0
[  488.633848] Could not find device with ifindex 2000 in netnsfd 11
[  488.634150] Could not find netns with fd: 2000
[  488.634236] Cannot link a netdevsim to itself
[  488.634342] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).