[  490.975585] netdevsim netdevsim455 eni455np1: renamed from eth0
[  491.076588] netdevsim netdevsim725 eni725np1: renamed from eth1
[  491.430750] Could not find device with ifindex 2000 in netnsfd 11
[  491.430921] Could not find netns with fd: 2000
[  491.431023] Cannot link a netdevsim to itself
[  491.431148] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).