[  490.045159] netdevsim netdevsim656 eni656np1: renamed from eth1
[  490.045971] netdevsim netdevsim404 eni404np1: renamed from eth0
[  490.131423] Could not find device with ifindex 2000 in netnsfd 11
[  490.131549] Could not find netns with fd: 2000
[  490.131605] Cannot link a netdevsim to itself
[  490.131666] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).