[  485.900836] netdevsim netdevsim536 eni536np1: renamed from eth1
[  485.997857] netdevsim netdevsim322 eni322np1: renamed from eth0
[  486.202075] Could not find device with ifindex 2000 in netnsfd 11
[  486.202298] Could not find netns with fd: 2000
[  486.202369] Cannot link a netdevsim to itself
[  486.202468] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).