[ 1021.240751][T12577] netdevsim netdevsim336 eni336np1: renamed from eth0
[ 1021.360930][T12575] netdevsim netdevsim611 eni611np1: renamed from eth1
[ 1023.146084][T12569] Could not find device with ifindex 2000 in netnsfd 11
[ 1023.147391][T12569] Could not find netns with fd: 2000
[ 1023.148076][T12569] Cannot link a netdevsim to itself
[ 1023.148850][T12569] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).