[  521.352911] netdevsim netdevsim373 eni373np1: renamed from eth0
[  521.448997] netdevsim netdevsim635 eni635np1: renamed from eth1
[  521.709142] Could not find device with ifindex 2000 in netnsfd 11
[  521.709372] Could not find netns with fd: 2000
[  521.709501] Cannot link a netdevsim to itself
[  521.709650] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).