[  486.424595] netdevsim netdevsim650 eni650np1: renamed from eth1
[  486.525961] netdevsim netdevsim505 eni505np1: renamed from eth0
[  486.870583] Could not find device with ifindex 2000 in netnsfd 11
[  486.870706] Could not find netns with fd: 2000
[  486.870775] Cannot link a netdevsim to itself
[  486.870879] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).