[  527.419136] netdevsim netdevsim373 eni373np1: renamed from eth0
[  527.515837] netdevsim netdevsim674 eni674np1: renamed from eth1
[  527.764528] Could not find device with ifindex 2000 in netnsfd 11
[  527.764742] Could not find netns with fd: 2000
[  527.764847] Cannot link a netdevsim to itself
[  527.764975] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).