[  483.689372] netdevsim netdevsim645 eni645np1: renamed from eth1
[  483.789192] netdevsim netdevsim264 eni264np1: renamed from eth0
[  484.169519] Could not find device with ifindex 2000 in netnsfd 11
[  484.169671] Could not find netns with fd: 2000
[  484.169770] Cannot link a netdevsim to itself
[  484.169887] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).