[  457.945083] netdevsim netdevsim322 eni322np1: renamed from eth0
[  457.946545] netdevsim netdevsim522 eni522np1: renamed from eth0
[  458.042065] Could not find device with ifindex 2000 in netnsfd 11
[  458.042215] Could not find netns with fd: 2000
[  458.042313] Cannot link a netdevsim to itself
[  458.042421] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).