[  811.467366][T14468] netdevsim netdevsim490 eni490np1: renamed from eth0
[  811.481961][T14470] netdevsim netdevsim699 eni699np1: renamed from eth1
[  812.043578][T14456] Could not find device with ifindex 2000 in netnsfd 11
[  812.044203][T14456] Could not find netns with fd: 2000
[  812.044589][T14456] Cannot link a netdevsim to itself
[  812.045374][T14456] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).