[  488.231430] netdevsim netdevsim378 eni378np1: renamed from eth0
[  488.328878] netdevsim netdevsim555 eni555np1: renamed from eth1
[  488.547629] Could not find device with ifindex 2000 in netnsfd 11
[  488.547826] Could not find netns with fd: 2000
[  488.547917] Cannot link a netdevsim to itself
[  488.548038] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).