[  490.477224] netdevsim netdevsim488 eni488np1: renamed from eth0
[  490.478066] netdevsim netdevsim748 eni748np1: renamed from eth1
[  490.575085] Could not find device with ifindex 2000 in netnsfd 11
[  490.575164] Could not find netns with fd: 2000
[  490.575207] Cannot link a netdevsim to itself
[  490.575254] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).