[ 1246.642423][T12786] netdevsim netdevsim657 eni657np1: renamed from eth1
[ 1246.762425][T12785] netdevsim netdevsim280 eni280np1: renamed from eth0
[ 1249.263376][T12778] Could not find device with ifindex 2000 in netnsfd 11
[ 1249.264797][T12778] Could not find netns with fd: 2000
[ 1249.266419][T12778] Cannot link a netdevsim to itself
[ 1249.268129][T12778] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).