[ 1248.497530][T12786] netdevsim netdevsim601 eni601np1: renamed from eth1
[ 1248.611585][T12788] netdevsim netdevsim319 eni319np1: renamed from eth0
[ 1251.342914][T12775] Could not find device with ifindex 2000 in netnsfd 11
[ 1251.344205][T12775] Could not find netns with fd: 2000
[ 1251.345195][T12775] Cannot link a netdevsim to itself
[ 1251.346637][T12775] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).