[ 1226.180769][T11143] netdevsim netdevsim648 eni648np1: renamed from eth1
[ 1226.292903][T11145] netdevsim netdevsim503 eni503np1: renamed from eth0
[ 1229.644268][T11136] Could not find device with ifindex 2000 in netnsfd 11
[ 1229.645320][T11136] Could not find netns with fd: 2000
[ 1229.646185][T11136] Cannot link a netdevsim to itself
[ 1229.647230][T11136] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).