[  487.932494] netdevsim netdevsim339 eni339np1: renamed from eth0
[  487.933326] netdevsim netdevsim618 eni618np1: renamed from eth1
[  488.034075] Could not find device with ifindex 2000 in netnsfd 11
[  488.034248] Could not find netns with fd: 2000
[  488.034380] Cannot link a netdevsim to itself
[  488.034519] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).