[ 1444.725857][T12852] netdevsim netdevsim397 eni397np1: renamed from eth0
[ 1444.744838][T12854] netdevsim netdevsim685 eni685np1: renamed from eth1
[ 1447.985872][T12839] Could not find device with ifindex 2000 in netnsfd 11
[ 1447.988188][T12839] Could not find netns with fd: 2000
[ 1447.989180][T12839] Cannot link a netdevsim to itself
[ 1447.990613][T12839] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).