[  476.961813] netdevsim netdevsim399 eni399np1: renamed from eth0
[  476.962264] netdevsim netdevsim541 eni541np1: renamed from eth1
[  477.059003] Could not find device with ifindex 2000 in netnsfd 11
[  477.059097] Could not find netns with fd: 2000
[  477.059140] Cannot link a netdevsim to itself
[  477.059190] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).