[  863.475309][T15836] netdevsim netdevsim451 eni451np1: renamed from eth0
[  863.496166][T15837] netdevsim netdevsim640 eni640np1: renamed from eth1
[  864.182711][T15825] Could not find device with ifindex 2000 in netnsfd 11
[  864.183424][T15825] Could not find netns with fd: 2000
[  864.183987][T15825] Cannot link a netdevsim to itself
[  864.184581][T15825] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).