[  486.532097] netdevsim netdevsim293 eni293np1: renamed from eth0
[  486.633504] netdevsim netdevsim670 eni670np1: renamed from eth1
[  487.037873] Could not find device with ifindex 2000 in netnsfd 11
[  487.038085] Could not find netns with fd: 2000
[  487.038190] Cannot link a netdevsim to itself
[  487.038341] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).