[  515.282474] netdevsim netdevsim601 eni601np1: renamed from eth1
[  515.380822] netdevsim netdevsim277 eni277np1: renamed from eth0
[  515.620337] Could not find device with ifindex 2000 in netnsfd 11
[  515.620548] Could not find netns with fd: 2000
[  515.620634] Cannot link a netdevsim to itself
[  515.620732] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).