[  454.235047] netdevsim netdevsim291 eni291np1: renamed from eth0
[  454.235708] netdevsim netdevsim536 eni536np1: renamed from eth1
[  454.322108] Could not find device with ifindex 2000 in netnsfd 11
[  454.322213] Could not find netns with fd: 2000
[  454.322273] Cannot link a netdevsim to itself
[  454.322345] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).