[  523.127914] netdevsim netdevsim717 eni717np1: renamed from eth1
[  523.225968] netdevsim netdevsim406 eni406np1: renamed from eth0
[  523.434299] Could not find device with ifindex 2000 in netnsfd 11
[  523.434449] Could not find netns with fd: 2000
[  523.434521] Cannot link a netdevsim to itself
[  523.434608] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).