[  510.783033] netdevsim netdevsim419 eni419np1: renamed from eth0
[  510.880552] netdevsim netdevsim657 eni657np1: renamed from eth1
[  511.114276] Could not find device with ifindex 2000 in netnsfd 11
[  511.114447] Could not find netns with fd: 2000
[  511.114540] Cannot link a netdevsim to itself
[  511.114635] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).