[  520.115598] netdevsim netdevsim298 eni298np1: renamed from eth0
[  520.212773] netdevsim netdevsim637 eni637np1: renamed from eth1
[  520.436235] Could not find device with ifindex 2000 in netnsfd 11
[  520.436387] Could not find netns with fd: 2000
[  520.436460] Cannot link a netdevsim to itself
[  520.436548] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).