[  489.080694] netdevsim netdevsim597 eni597np1: renamed from eth1
[  489.177629] netdevsim netdevsim299 eni299np1: renamed from eth0
[  489.388142] Could not find device with ifindex 2000 in netnsfd 11
[  489.388465] Could not find netns with fd: 2000
[  489.388596] Cannot link a netdevsim to itself
[  489.388744] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).