[  455.190974] netdevsim netdevsim334 eni334np1: renamed from eth0
[  455.191724] netdevsim netdevsim729 eni729np1: renamed from eth1
[  455.274738] Could not find device with ifindex 2000 in netnsfd 11
[  455.274890] Could not find netns with fd: 2000
[  455.274946] Cannot link a netdevsim to itself
[  455.275037] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).