[  492.893830] netdevsim netdevsim740 eni740np1: renamed from eth1
[  492.990995] netdevsim netdevsim415 eni415np1: renamed from eth0
[  493.218055] Could not find device with ifindex 2000 in netnsfd 11
[  493.218384] Could not find netns with fd: 2000
[  493.218467] Cannot link a netdevsim to itself
[  493.218567] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).