[  743.030169][T14424] netdevsim netdevsim499 eni499np1: renamed from eth0
[  743.052120][T14426] netdevsim netdevsim697 eni697np1: renamed from eth1
[  743.582920][T14412] Could not find device with ifindex 2000 in netnsfd 11
[  743.583507][T14412] Could not find netns with fd: 2000
[  743.583888][T14412] Cannot link a netdevsim to itself
[  743.584293][T14412] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).