[  491.528490] netdevsim netdevsim463 eni463np1: renamed from eth0
[  491.624573] netdevsim netdevsim553 eni553np1: renamed from eth1
[  491.845006] Could not find device with ifindex 2000 in netnsfd 11
[  491.845364] Could not find netns with fd: 2000
[  491.845480] Cannot link a netdevsim to itself
[  491.845643] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).