[  521.661544] netdevsim netdevsim754 eni754np1: renamed from eth1
[  521.758482] netdevsim netdevsim384 eni384np1: renamed from eth0
[  521.998218] Could not find device with ifindex 2000 in netnsfd 11
[  521.998409] Could not find netns with fd: 2000
[  521.998501] Cannot link a netdevsim to itself
[  521.998620] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).