[  770.896508][T14565] netdevsim netdevsim372 eni372np1: renamed from eth0
[  770.913457][T14567] netdevsim netdevsim515 eni515np1: renamed from eth1
[  771.499440][T14553] Could not find device with ifindex 2000 in netnsfd 11
[  771.500004][T14553] Could not find netns with fd: 2000
[  771.500796][T14553] Cannot link a netdevsim to itself
[  771.501357][T14553] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).