[  473.590654] netdevsim netdevsim428 eni428np1: renamed from eth0
[  473.591618] netdevsim netdevsim527 eni527np1: renamed from eth0
[  473.668955] Could not find device with ifindex 2000 in netnsfd 11
[  473.669038] Could not find netns with fd: 2000
[  473.669081] Cannot link a netdevsim to itself
[  473.669143] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).