[  840.572827][T15813] netdevsim netdevsim298 eni298np1: renamed from eth0
[  840.602575][T15815] netdevsim netdevsim720 eni720np1: renamed from eth1
[  841.197679][T15801] Could not find device with ifindex 2000 in netnsfd 11
[  841.198448][T15801] Could not find netns with fd: 2000
[  841.199024][T15801] Cannot link a netdevsim to itself
[  841.199781][T15801] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).