[  637.693903][ T9975] netdevsim netdevsim739 eni739np1: renamed from eth1
[  637.700329][ T9973] netdevsim netdevsim352 eni352np1: renamed from eth0
[  638.498049][ T9961] Could not find device with ifindex 2000 in netnsfd 11
[  638.498921][ T9961] Could not find netns with fd: 2000
[  638.499407][ T9961] Cannot link a netdevsim to itself
[  638.499978][ T9961] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).