[  521.805859] netdevsim netdevsim323 eni323np1: renamed from eth0
[  521.903067] netdevsim netdevsim553 eni553np1: renamed from eth1
[  522.129865] Could not find device with ifindex 2000 in netnsfd 11
[  522.130010] Could not find netns with fd: 2000
[  522.130081] Cannot link a netdevsim to itself
[  522.130181] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).