[  477.123895] netdevsim netdevsim356 eni356np1: renamed from eth0
[  477.124932] netdevsim netdevsim556 eni556np1: renamed from eth1
[  477.239894] Could not find device with ifindex 2000 in netnsfd 11
[  477.240005] Could not find netns with fd: 2000
[  477.240058] Cannot link a netdevsim to itself
[  477.240120] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).