[ 1219.993793][T12774] netdevsim netdevsim337 eni337np1: renamed from eth0
[ 1220.125859][T12771] netdevsim netdevsim706 eni706np1: renamed from eth1
[ 1222.637310][T12767] Could not find device with ifindex 2000 in netnsfd 11
[ 1222.638408][T12767] Could not find netns with fd: 2000
[ 1222.642253][T12767] Cannot link a netdevsim to itself
[ 1222.643376][T12767] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).