[ 1248.480252][T12616] netdevsim netdevsim619 eni619np1: renamed from eth1
[ 1248.629540][T12619] netdevsim netdevsim461 eni461np1: renamed from eth0
[ 1251.248577][T12608] Could not find device with ifindex 2000 in netnsfd 11
[ 1251.250493][T12608] Could not find netns with fd: 2000
[ 1251.251909][T12608] Cannot link a netdevsim to itself
[ 1251.253662][T12608] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).