[  511.113880] netdevsim netdevsim273 eni273np1: renamed from eth0
[  511.212171] netdevsim netdevsim699 eni699np1: renamed from eth1
[  511.403252] Could not find device with ifindex 2000 in netnsfd 11
[  511.403408] Could not find netns with fd: 2000
[  511.403507] Cannot link a netdevsim to itself
[  511.403602] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).