[  630.124797][ T9969] netdevsim netdevsim642 eni642np1: renamed from eth1
[  630.133691][ T9970] netdevsim netdevsim262 eni262np1: renamed from eth0
[  630.680294][ T9958] Could not find device with ifindex 2000 in netnsfd 11
[  630.680849][ T9958] Could not find netns with fd: 2000
[  630.681222][ T9958] Cannot link a netdevsim to itself
[  630.681769][ T9958] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).