[  488.255648] netdevsim netdevsim511 eni511np1: renamed from eth0
[  488.352015] netdevsim netdevsim586 eni586np1: renamed from eth1
[  488.590584] Could not find device with ifindex 2000 in netnsfd 11
[  488.590919] Could not find netns with fd: 2000
[  488.591015] Cannot link a netdevsim to itself
[  488.591129] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).