[  455.314886] netdevsim netdevsim644 eni644np1: renamed from eth1
[  455.315104] netdevsim netdevsim475 eni475np1: renamed from eth0
[  455.404884] Could not find device with ifindex 2000 in netnsfd 11
[  455.404980] Could not find netns with fd: 2000
[  455.405042] Cannot link a netdevsim to itself
[  455.405084] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).
[  455.405157] Netdevsim 10:251 is already linked