[  473.655049] netdevsim netdevsim402 eni402np1: renamed from eth0
[  473.655414] netdevsim netdevsim635 eni635np1: renamed from eth1
[  473.742398] Could not find device with ifindex 2000 in netnsfd 11
[  473.742548] Could not find netns with fd: 2000
[  473.742660] Cannot link a netdevsim to itself
[  473.742790] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).