[  516.785554] netdevsim netdevsim680 eni680np1: renamed from eth1
[  516.881364] netdevsim netdevsim414 eni414np1: renamed from eth0
[  517.144149] Could not find device with ifindex 2000 in netnsfd 11
[  517.144441] Could not find netns with fd: 2000
[  517.144581] Cannot link a netdevsim to itself
[  517.144741] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).