[  514.186784] netdevsim netdevsim601 eni601np1: renamed from eth1
[  514.283746] netdevsim netdevsim431 eni431np1: renamed from eth0
[  514.477019] Could not find device with ifindex 2000 in netnsfd 11
[  514.477182] Could not find netns with fd: 2000
[  514.477254] Cannot link a netdevsim to itself
[  514.477341] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).