[  513.940460] netdevsim netdevsim373 eni373np1: renamed from eth0
[  514.037624] netdevsim netdevsim708 eni708np1: renamed from eth1
[  514.250202] Could not find device with ifindex 2000 in netnsfd 11
[  514.250383] Could not find netns with fd: 2000
[  514.250496] Cannot link a netdevsim to itself
[  514.250607] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).