[  491.922612] netdevsim netdevsim464 eni464np1: renamed from eth0
[  492.018866] netdevsim netdevsim622 eni622np1: renamed from eth1
[  492.268847] Could not find device with ifindex 2000 in netnsfd 11
[  492.269197] Could not find netns with fd: 2000
[  492.269301] Cannot link a netdevsim to itself
[  492.269412] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).