[  457.120911] netdevsim netdevsim467 eni467np1: renamed from eth0
[  457.122235] netdevsim netdevsim722 eni722np1: renamed from eth1
[  457.215419] Could not find device with ifindex 2000 in netnsfd 11
[  457.215584] Could not find netns with fd: 2000
[  457.215685] Cannot link a netdevsim to itself
[  457.215818] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).