[  492.180562] netdevsim netdevsim342 eni342np1: renamed from eth0
[  492.276462] netdevsim netdevsim648 eni648np1: renamed from eth1
[  492.517636] Could not find device with ifindex 2000 in netnsfd 11
[  492.518020] Could not find netns with fd: 2000
[  492.518117] Cannot link a netdevsim to itself
[  492.518237] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).