[  479.675673] netdevsim netdevsim662 eni662np1: renamed from eth1
[  479.675841] netdevsim netdevsim468 eni468np1: renamed from eth0
[  479.760580] Could not find device with ifindex 2000 in netnsfd 11
[  479.760674] Could not find netns with fd: 2000
[  479.760722] Cannot link a netdevsim to itself
[  479.760775] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).