[  486.247441] netdevsim netdevsim436 eni436np1: renamed from eth0
[  486.248192] netdevsim netdevsim553 eni553np1: renamed from eth1
[  486.344847] Could not find device with ifindex 2000 in netnsfd 11
[  486.344942] Could not find netns with fd: 2000
[  486.344984] Cannot link a netdevsim to itself
[  486.345064] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).