[  620.257143][ T9948] netdevsim netdevsim478 eni478np1: renamed from eth0
[  620.260283][ T9945] netdevsim netdevsim548 eni548np1: renamed from eth1
[  620.873440][ T9932] Could not find device with ifindex 2000 in netnsfd 11
[  620.874114][ T9932] Could not find netns with fd: 2000
[  620.874615][ T9932] Cannot link a netdevsim to itself
[  620.875123][ T9932] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).