[  487.822122] netdevsim netdevsim534 eni534np1: renamed from eth1
[  487.918491] netdevsim netdevsim414 eni414np1: renamed from eth0
[  488.137947] Could not find device with ifindex 2000 in netnsfd 11
[  488.138244] Could not find netns with fd: 2000
[  488.138343] Cannot link a netdevsim to itself
[  488.138474] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).