[  486.387399] netdevsim netdevsim323 eni323np1: renamed from eth0
[  486.488383] netdevsim netdevsim656 eni656np1: renamed from eth1
[  486.866467] Could not find device with ifindex 2000 in netnsfd 11
[  486.866636] Could not find netns with fd: 2000
[  486.866722] Cannot link a netdevsim to itself
[  486.866825] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).