[  519.328512] netdevsim netdevsim700 eni700np1: renamed from eth1
[  519.426314] netdevsim netdevsim390 eni390np1: renamed from eth0
[  519.649939] Could not find device with ifindex 2000 in netnsfd 11
[  519.650091] Could not find netns with fd: 2000
[  519.650163] Cannot link a netdevsim to itself
[  519.650259] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).