[  493.824178] netdevsim netdevsim618 eni618np1: renamed from eth1
[  493.918765] netdevsim netdevsim339 eni339np1: renamed from eth0
[  494.171222] Could not find device with ifindex 2000 in netnsfd 11
[  494.171624] Could not find netns with fd: 2000
[  494.171723] Cannot link a netdevsim to itself
[  494.171839] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).