[  491.401308] netdevsim netdevsim423 eni423np1: renamed from eth0
[  491.501931] netdevsim netdevsim706 eni706np1: renamed from eth1
[  491.877392] Could not find device with ifindex 2000 in netnsfd 11
[  491.877597] Could not find netns with fd: 2000
[  491.877692] Cannot link a netdevsim to itself
[  491.877860] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).