[  650.541115][ T6849] netdevsim netdevsim329 eni329np1: renamed from eth0
[  650.650656][ T6615] netdevsim netdevsim691 eni691np1: renamed from eth1
[  652.536292][ T6845] Could not find device with ifindex 2000 in netnsfd 11
[  652.537403][ T6845] Could not find netns with fd: 2000
[  652.538196][ T6845] Cannot link a netdevsim to itself
[  652.539171][ T6845] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).