[  486.453665] netdevsim netdevsim309 eni309np1: renamed from eth0
[  486.550016] netdevsim netdevsim539 eni539np1: renamed from eth1
[  486.753123] Could not find device with ifindex 2000 in netnsfd 11
[  486.753480] Could not find netns with fd: 2000
[  486.753574] Cannot link a netdevsim to itself
[  486.753693] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).