[  487.310595] netdevsim netdevsim372 eni372np1: renamed from eth0
[  487.407940] netdevsim netdevsim668 eni668np1: renamed from eth1
[  487.609085] Could not find device with ifindex 2000 in netnsfd 11
[  487.609244] Could not find netns with fd: 2000
[  487.609327] Cannot link a netdevsim to itself
[  487.609426] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).