[  522.028145] netdevsim netdevsim625 eni625np1: renamed from eth1
[  522.125876] netdevsim netdevsim310 eni310np1: renamed from eth0
[  522.371400] Could not find device with ifindex 2000 in netnsfd 11
[  522.371571] Could not find netns with fd: 2000
[  522.371669] Cannot link a netdevsim to itself
[  522.371773] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).