[  695.977981][T13029] netdevsim netdevsim510 eni510np1: renamed from eth0
[  696.000094][T13031] netdevsim netdevsim699 eni699np1: renamed from eth1
[  696.632116][T13016] Could not find device with ifindex 2000 in netnsfd 11
[  696.633120][T13016] Could not find netns with fd: 2000
[  696.633639][T13016] Cannot link a netdevsim to itself
[  696.634241][T13016] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).