[ 1237.817558][T11151] netdevsim netdevsim637 eni637np1: renamed from eth1
[ 1237.918058][T11152] netdevsim netdevsim262 eni262np1: renamed from eth0
[ 1241.252635][T11144] Could not find device with ifindex 2000 in netnsfd 11
[ 1241.254103][T11144] Could not find netns with fd: 2000
[ 1241.255011][T11144] Cannot link a netdevsim to itself
[ 1241.256625][T11144] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).