[  490.180236] netdevsim netdevsim471 eni471np1: renamed from eth0
[  490.281594] netdevsim netdevsim594 eni594np1: renamed from eth1
[  490.686232] Could not find device with ifindex 2000 in netnsfd 11
[  490.686367] Could not find netns with fd: 2000
[  490.686464] Cannot link a netdevsim to itself
[  490.686552] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).