[  488.838887] netdevsim netdevsim309 eni309np1: renamed from eth0
[  488.936288] netdevsim netdevsim703 eni703np1: renamed from eth1
[  489.140728] Could not find device with ifindex 2000 in netnsfd 11
[  489.140901] Could not find netns with fd: 2000
[  489.140978] Cannot link a netdevsim to itself
[  489.141086] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).