[  514.379005] netdevsim netdevsim553 eni553np1: renamed from eth1
[  514.476082] netdevsim netdevsim339 eni339np1: renamed from eth0
[  514.680582] Could not find device with ifindex 2000 in netnsfd 11
[  514.680769] Could not find netns with fd: 2000
[  514.680846] Cannot link a netdevsim to itself
[  514.680937] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).