[ 1247.618334][T12785] netdevsim netdevsim687 eni687np1: renamed from eth1
[ 1247.685608][T12784] netdevsim netdevsim259 eni259np1: renamed from eth0
[ 1250.308034][T12773] Could not find device with ifindex 2000 in netnsfd 11
[ 1250.310150][T12773] Could not find netns with fd: 2000
[ 1250.311117][T12773] Cannot link a netdevsim to itself
[ 1250.312503][T12773] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).