[  682.529996][T14563] netdevsim netdevsim300 eni300np1: renamed from eth0
[  682.542405][T14565] netdevsim netdevsim647 eni647np1: renamed from eth1
[  682.868962][T14551] Could not find device with ifindex 2000 in netnsfd 11
[  682.869216][T14551] Could not find netns with fd: 2000
[  682.869431][T14551] Cannot link a netdevsim to itself
[  682.869659][T14551] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).