[  525.547828] netdevsim netdevsim577 eni577np1: renamed from eth1
[  525.644903] netdevsim netdevsim442 eni442np1: renamed from eth0
[  525.886896] Could not find device with ifindex 2000 in netnsfd 11
[  525.887051] Could not find netns with fd: 2000
[  525.887123] Cannot link a netdevsim to itself
[  525.887210] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).