[  485.731667] netdevsim netdevsim509 eni509np1: renamed from eth0
[  485.733073] netdevsim netdevsim625 eni625np1: renamed from eth1
[  485.818651] Could not find device with ifindex 2000 in netnsfd 11
[  485.818804] Could not find netns with fd: 2000
[  485.818922] Cannot link a netdevsim to itself
[  485.819079] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).