[  487.869693] netdevsim netdevsim310 eni310np1: renamed from eth0
[  487.971410] netdevsim netdevsim556 eni556np1: renamed from eth1
[  488.312009] Could not find device with ifindex 2000 in netnsfd 11
[  488.312193] Could not find netns with fd: 2000
[  488.312305] Cannot link a netdevsim to itself
[  488.312440] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).