[  522.646527] netdevsim netdevsim742 eni742np1: renamed from eth1
[  522.743239] netdevsim netdevsim322 eni322np1: renamed from eth0
[  522.993932] Could not find device with ifindex 2000 in netnsfd 11
[  522.994093] Could not find netns with fd: 2000
[  522.994180] Cannot link a netdevsim to itself
[  522.994268] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).