[  492.931334] netdevsim netdevsim459 eni459np1: renamed from eth0
[  492.932082] netdevsim netdevsim688 eni688np1: renamed from eth0
[  493.009261] Could not find device with ifindex 2000 in netnsfd 11
[  493.009396] Could not find netns with fd: 2000
[  493.009502] Cannot link a netdevsim to itself
[  493.009618] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).