[  460.622149] netdevsim netdevsim263 eni263np1: renamed from eth0
[  460.622703] netdevsim netdevsim619 eni619np1: renamed from eth1
[  460.707675] Could not find device with ifindex 2000 in netnsfd 11
[  460.707856] Could not find netns with fd: 2000
[  460.708001] Cannot link a netdevsim to itself
[  460.708145] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).