[  820.397185][T14637] netdevsim netdevsim442 eni442np1: renamed from eth0
[  820.426828][T14639] netdevsim netdevsim608 eni608np1: renamed from eth1
[  821.103582][T14625] Could not find device with ifindex 2000 in netnsfd 11
[  821.104876][T14625] Could not find netns with fd: 2000
[  821.105289][T14625] Cannot link a netdevsim to itself
[  821.105732][T14625] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).