[  478.531330] netdevsim netdevsim517 eni517np1: renamed from eth1
[  478.531533] netdevsim netdevsim415 eni415np1: renamed from eth0
[  478.618004] Could not find device with ifindex 2000 in netnsfd 11
[  478.618113] Could not find netns with fd: 2000
[  478.618159] Cannot link a netdevsim to itself
[  478.618210] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).