[  524.254657] netdevsim netdevsim312 eni312np1: renamed from eth0
[  524.351970] netdevsim netdevsim755 eni755np1: renamed from eth1
[  524.643805] Could not find device with ifindex 2000 in netnsfd 11
[  524.644010] Could not find netns with fd: 2000
[  524.644114] Cannot link a netdevsim to itself
[  524.644243] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).