[  522.376612] netdevsim netdevsim544 eni544np1: renamed from eth1
[  522.472827] netdevsim netdevsim327 eni327np1: renamed from eth0
[  522.713276] Could not find device with ifindex 2000 in netnsfd 11
[  522.713476] Could not find netns with fd: 2000
[  522.713550] Cannot link a netdevsim to itself
[  522.713690] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).