[  492.096943] netdevsim netdevsim531 eni531np1: renamed from eth1
[  492.193013] netdevsim netdevsim409 eni409np1: renamed from eth0
[  492.427955] Could not find device with ifindex 2000 in netnsfd 11
[  492.428336] Could not find netns with fd: 2000
[  492.428417] Cannot link a netdevsim to itself
[  492.428519] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).