[ 1319.117711][T12063] netdevsim netdevsim520 eni520np1: renamed from eth1
[ 1319.145279][T12065] netdevsim netdevsim306 eni306np1: renamed from eth0
[ 1322.892150][T12057] Could not find device with ifindex 2000 in netnsfd 11
[ 1322.892958][T12057] Could not find netns with fd: 2000
[ 1322.893648][T12057] Cannot link a netdevsim to itself
[ 1322.894776][T12057] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).