[  454.186905] netdevsim netdevsim648 eni648np1: renamed from eth1
[  454.284252] netdevsim netdevsim467 eni467np1: renamed from eth0
[  454.530330] Could not find device with ifindex 2000 in netnsfd 11
[  454.530676] Could not find netns with fd: 2000
[  454.530774] Cannot link a netdevsim to itself
[  454.530898] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).