[  525.787410][ T6490] netdevsim netdevsim272 eni272np1: renamed from eth0
[  525.902761][ T6489] netdevsim netdevsim657 eni657np1: renamed from eth1
[  529.475988][ T6478] Could not find device with ifindex 2000 in netnsfd 11
[  529.478240][ T6478] Could not find netns with fd: 2000
[  529.480114][ T6478] Cannot link a netdevsim to itself
[  529.484665][ T6478] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).