[ 1255.186869][T12776] netdevsim netdevsim635 eni635np1: renamed from eth1
[ 1255.315511][T12778] netdevsim netdevsim285 eni285np1: renamed from eth0
[ 1257.830999][T12770] Could not find device with ifindex 2000 in netnsfd 11
[ 1257.832194][T12770] Could not find netns with fd: 2000
[ 1257.833069][T12770] Cannot link a netdevsim to itself
[ 1257.834476][T12770] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).