[  521.495354] netdevsim netdevsim441 eni441np1: renamed from eth0
[  521.593284] netdevsim netdevsim514 eni514np1: renamed from eth1
[  521.841779] Could not find device with ifindex 2000 in netnsfd 11
[  521.842044] Could not find netns with fd: 2000
[  521.842170] Cannot link a netdevsim to itself
[  521.842298] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).