[  455.517538] netdevsim netdevsim620 eni620np1: renamed from eth1
[  455.519346] netdevsim netdevsim425 eni425np1: renamed from eth0
[  455.604194] Could not find device with ifindex 2000 in netnsfd 11
[  455.604308] Could not find netns with fd: 2000
[  455.604355] Cannot link a netdevsim to itself
[  455.604405] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).