[ 1250.688984][T12780] netdevsim netdevsim399 eni399np1: renamed from eth0
[ 1250.819902][T12778] netdevsim netdevsim573 eni573np1: renamed from eth1
[ 1253.408413][T12772] Could not find device with ifindex 2000 in netnsfd 11
[ 1253.409762][T12772] Could not find netns with fd: 2000
[ 1253.410657][T12772] Cannot link a netdevsim to itself
[ 1253.411865][T12772] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).