[  455.018622] netdevsim netdevsim312 eni312np1: renamed from eth0
[  455.019806] netdevsim netdevsim660 eni660np1: renamed from eth1
[  455.113906] Could not find device with ifindex 2000 in netnsfd 11
[  455.114051] Could not find netns with fd: 2000
[  455.114158] Cannot link a netdevsim to itself
[  455.114277] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).