[  483.530001] netdevsim netdevsim547 eni547np1: renamed from eth1
[  483.530244] netdevsim netdevsim399 eni399np1: renamed from eth0
[  483.611475] Could not find device with ifindex 2000 in netnsfd 11
[  483.611568] Could not find netns with fd: 2000
[  483.611612] Cannot link a netdevsim to itself
[  483.611663] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).