[  488.472068] netdevsim netdevsim505 eni505np1: renamed from eth0
[  488.472597] netdevsim netdevsim525 eni525np1: renamed from eth1
[  488.566829] Could not find device with ifindex 2000 in netnsfd 11
[  488.566972] Could not find netns with fd: 2000
[  488.567035] Cannot link a netdevsim to itself
[  488.567104] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).