[  475.346485] netdevsim netdevsim300 eni300np1: renamed from eth0
[  475.346848] netdevsim netdevsim528 eni528np1: renamed from eth1
[  475.441180] Could not find device with ifindex 2000 in netnsfd 11
[  475.441277] Could not find netns with fd: 2000
[  475.441323] Cannot link a netdevsim to itself
[  475.441374] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).