[  764.507838][T14751] netdevsim netdevsim321 eni321np1: renamed from eth0
[  764.520056][T14753] netdevsim netdevsim632 eni632np1: renamed from eth1
[  765.074409][T14739] Could not find device with ifindex 2000 in netnsfd 11
[  765.074883][T14739] Could not find netns with fd: 2000
[  765.075245][T14739] Cannot link a netdevsim to itself
[  765.075639][T14739] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).