[ 1231.474184][T12776] netdevsim netdevsim611 eni611np1: renamed from eth1
[ 1231.541495][T12777] netdevsim netdevsim409 eni409np1: renamed from eth0
[ 1234.007127][T12769] Could not find device with ifindex 2000 in netnsfd 11
[ 1234.008218][T12769] Could not find netns with fd: 2000
[ 1234.009054][T12769] Cannot link a netdevsim to itself
[ 1234.010098][T12769] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).