[  521.319542] netdevsim netdevsim589 eni589np1: renamed from eth1
[  521.416500] netdevsim netdevsim505 eni505np1: renamed from eth0
[  521.682944] Could not find device with ifindex 2000 in netnsfd 11
[  521.683145] Could not find netns with fd: 2000
[  521.683221] Cannot link a netdevsim to itself
[  521.683324] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).