[  522.423808] netdevsim netdevsim467 eni467np1: renamed from eth0
[  522.521194] netdevsim netdevsim638 eni638np1: renamed from eth1
[  522.772505] Could not find device with ifindex 2000 in netnsfd 11
[  522.772714] Could not find netns with fd: 2000
[  522.772819] Cannot link a netdevsim to itself
[  522.772933] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).