[  521.840918] netdevsim netdevsim373 eni373np1: renamed from eth0
[  521.942994] netdevsim netdevsim554 eni554np1: renamed from eth1
[  522.420118] Could not find device with ifindex 2000 in netnsfd 11
[  522.433428] Could not find netns with fd: 2000
[  522.433735] Cannot link a netdevsim to itself
[  522.434003] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).