[  521.238197] netdevsim netdevsim294 eni294np1: renamed from eth0
[  521.336017] netdevsim netdevsim554 eni554np1: renamed from eth1
[  521.544810] Could not find device with ifindex 2000 in netnsfd 11
[  521.544976] Could not find netns with fd: 2000
[  521.545048] Cannot link a netdevsim to itself
[  521.545134] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).