[ 1249.865509][T12787] netdevsim netdevsim550 eni550np1: renamed from eth1
[ 1249.978138][T12790] netdevsim netdevsim371 eni371np1: renamed from eth0
[ 1252.639575][T12778] Could not find device with ifindex 2000 in netnsfd 11
[ 1252.640739][T12778] Could not find netns with fd: 2000
[ 1252.641698][T12778] Cannot link a netdevsim to itself
[ 1252.642801][T12778] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).