[  511.415664] netdevsim netdevsim556 eni556np1: renamed from eth1
[  511.514274] netdevsim netdevsim428 eni428np1: renamed from eth0
[  511.702509] Could not find device with ifindex 2000 in netnsfd 11
[  511.702701] Could not find netns with fd: 2000
[  511.702794] Cannot link a netdevsim to itself
[  511.702892] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).