[  490.039286] netdevsim netdevsim649 eni649np1: renamed from eth1
[  490.135355] netdevsim netdevsim349 eni349np1: renamed from eth0
[  490.365402] Could not find device with ifindex 2000 in netnsfd 11
[  490.365656] Could not find netns with fd: 2000
[  490.365731] Cannot link a netdevsim to itself
[  490.365817] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).