[  473.087375] netdevsim netdevsim381 eni381np1: renamed from eth0
[  473.087892] netdevsim netdevsim638 eni638np1: renamed from eth1
[  473.167284] Could not find device with ifindex 2000 in netnsfd 11
[  473.167424] Could not find netns with fd: 2000
[  473.167527] Cannot link a netdevsim to itself
[  473.167695] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).