[  772.328344][T14564] netdevsim netdevsim403 eni403np1: renamed from eth0
[  772.344248][T14566] netdevsim netdevsim520 eni520np1: renamed from eth1
[  772.919562][T14552] Could not find device with ifindex 2000 in netnsfd 11
[  772.920057][T14552] Could not find netns with fd: 2000
[  772.920415][T14552] Cannot link a netdevsim to itself
[  772.921111][T14552] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).