[  457.030865] netdevsim netdevsim440 eni440np1: renamed from eth0
[  457.031330] netdevsim netdevsim558 eni558np1: renamed from eth1
[  457.116694] Could not find device with ifindex 2000 in netnsfd 11
[  457.116779] Could not find netns with fd: 2000
[  457.116823] Cannot link a netdevsim to itself
[  457.116868] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).