[  520.746297] netdevsim netdevsim655 eni655np1: renamed from eth1
[  520.843964] netdevsim netdevsim311 eni311np1: renamed from eth0
[  521.075812] Could not find device with ifindex 2000 in netnsfd 11
[  521.075998] Could not find netns with fd: 2000
[  521.076082] Cannot link a netdevsim to itself
[  521.076198] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).