[  516.185050] netdevsim netdevsim545 eni545np1: renamed from eth1
[  516.283750] netdevsim netdevsim316 eni316np1: renamed from eth0
[  516.476189] Could not find device with ifindex 2000 in netnsfd 11
[  516.476353] Could not find netns with fd: 2000
[  516.476431] Cannot link a netdevsim to itself
[  516.476526] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).