[ 1047.586903][T12761] netdevsim netdevsim503 eni503np1: renamed from eth0
[ 1047.709903][T12762] netdevsim netdevsim533 eni533np1: renamed from eth1
[ 1049.650084][T12753] Could not find device with ifindex 2000 in netnsfd 11
[ 1049.651030][T12753] Could not find netns with fd: 2000
[ 1049.657311][T12753] Cannot link a netdevsim to itself
[ 1049.658321][T12753] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).