[  488.470637] netdevsim netdevsim754 eni754np1: renamed from eth1
[  488.566407] netdevsim netdevsim451 eni451np1: renamed from eth0
[  488.816767] Could not find device with ifindex 2000 in netnsfd 11
[  488.817005] Could not find netns with fd: 2000
[  488.817080] Cannot link a netdevsim to itself
[  488.817172] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).