[ 1296.438127][T11144] netdevsim netdevsim749 eni749np1: renamed from eth1
[ 1296.452262][T11145] netdevsim netdevsim420 eni420np1: renamed from eth0
[ 1300.097136][T11137] Could not find device with ifindex 2000 in netnsfd 11
[ 1300.097917][T11137] Could not find netns with fd: 2000
[ 1300.098523][T11137] Cannot link a netdevsim to itself
[ 1300.099261][T11137] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).