[ 1247.186990][T12788] netdevsim netdevsim456 eni456np1: renamed from eth0
[ 1247.206120][T12790] netdevsim netdevsim547 eni547np1: renamed from eth1
[ 1249.855730][T12776] Could not find device with ifindex 2000 in netnsfd 11
[ 1249.856859][T12776] Could not find netns with fd: 2000
[ 1249.857712][T12776] Cannot link a netdevsim to itself
[ 1249.858797][T12776] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).