[  760.372150][T14449] netdevsim netdevsim504 eni504np1: renamed from eth0
[  760.393617][T14451] netdevsim netdevsim609 eni609np1: renamed from eth1
[  760.984310][T14437] Could not find device with ifindex 2000 in netnsfd 11
[  760.984870][T14437] Could not find netns with fd: 2000
[  760.985259][T14437] Cannot link a netdevsim to itself
[  760.985693][T14437] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).