[  488.293296] netdevsim netdevsim704 eni704np1: renamed from eth1
[  488.390620] netdevsim netdevsim281 eni281np1: renamed from eth0
[  488.614009] Could not find device with ifindex 2000 in netnsfd 11
[  488.614198] Could not find netns with fd: 2000
[  488.614298] Cannot link a netdevsim to itself
[  488.614418] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).