[  515.215377] netdevsim netdevsim554 eni554np1: renamed from eth1
[  515.313310] netdevsim netdevsim341 eni341np1: renamed from eth0
[  515.562868] Could not find device with ifindex 2000 in netnsfd 11
[  515.563086] Could not find netns with fd: 2000
[  515.563205] Cannot link a netdevsim to itself
[  515.563359] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).