[  521.667494] netdevsim netdevsim671 eni671np1: renamed from eth1
[  521.764681] netdevsim netdevsim281 eni281np1: renamed from eth0
[  522.013822] Could not find device with ifindex 2000 in netnsfd 11
[  522.014045] Could not find netns with fd: 2000
[  522.014171] Cannot link a netdevsim to itself
[  522.014319] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).