[  510.722075] netdevsim netdevsim617 eni617np1: renamed from eth1
[  510.818838] netdevsim netdevsim334 eni334np1: renamed from eth0
[  511.037637] Could not find device with ifindex 2000 in netnsfd 11
[  511.037807] Could not find netns with fd: 2000
[  511.037902] Cannot link a netdevsim to itself
[  511.038011] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).