[  483.598699] netdevsim netdevsim407 eni407np1: renamed from eth0
[  483.599388] netdevsim netdevsim550 eni550np1: renamed from eth1
[  483.692253] Could not find device with ifindex 2000 in netnsfd 11
[  483.692353] Could not find netns with fd: 2000
[  483.692402] Cannot link a netdevsim to itself
[  483.692451] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).