[  549.439519] netdevsim netdevsim606 eni606np1: renamed from eth1
[  549.537461] netdevsim netdevsim319 eni319np1: renamed from eth0
[  549.755203] Could not find device with ifindex 2000 in netnsfd 11
[  549.755367] Could not find netns with fd: 2000
[  549.755445] Cannot link a netdevsim to itself
[  549.755540] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).