[  770.847352][T14574] netdevsim netdevsim490 eni490np1: renamed from eth0
[  770.859867][T14576] netdevsim netdevsim644 eni644np1: renamed from eth1
[  771.427682][T14562] Could not find device with ifindex 2000 in netnsfd 11
[  771.428301][T14562] Could not find netns with fd: 2000
[  771.429180][T14562] Cannot link a netdevsim to itself
[  771.429876][T14562] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).