[  522.094413] netdevsim netdevsim297 eni297np1: renamed from eth0
[  522.190673] netdevsim netdevsim635 eni635np1: renamed from eth1
[  522.433144] Could not find device with ifindex 2000 in netnsfd 11
[  522.433359] Could not find netns with fd: 2000
[  522.433467] Cannot link a netdevsim to itself
[  522.433598] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).