[  489.036368] netdevsim netdevsim715 eni715np1: renamed from eth1
[  489.133471] netdevsim netdevsim304 eni304np1: renamed from eth0
[  489.343902] Could not find device with ifindex 2000 in netnsfd 11
[  489.344179] Could not find netns with fd: 2000
[  489.344297] Cannot link a netdevsim to itself
[  489.344412] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).