[  485.713873] netdevsim netdevsim464 eni464np1: renamed from eth0
[  485.815761] netdevsim netdevsim648 eni648np1: renamed from eth1
[  486.198282] Could not find device with ifindex 2000 in netnsfd 11
[  486.198436] Could not find netns with fd: 2000
[  486.198516] Cannot link a netdevsim to itself
[  486.198606] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).