[ 1244.669044][T11151] netdevsim netdevsim689 eni689np1: renamed from eth1
[ 1244.781529][T11150] netdevsim netdevsim399 eni399np1: renamed from eth0
[ 1248.229022][T11142] Could not find device with ifindex 2000 in netnsfd 11
[ 1248.230129][T11142] Could not find netns with fd: 2000
[ 1248.231077][T11142] Cannot link a netdevsim to itself
[ 1248.232211][T11142] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).