[  491.151298] netdevsim netdevsim471 eni471np1: renamed from eth0
[  491.252669] netdevsim netdevsim534 eni534np1: renamed from eth1
[  491.593484] Could not find device with ifindex 2000 in netnsfd 11
[  491.593609] Could not find netns with fd: 2000
[  491.593680] Cannot link a netdevsim to itself
[  491.593761] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).