[ 1237.136198][T11141] netdevsim netdevsim642 eni642np1: renamed from eth1
[ 1237.238953][T11142] netdevsim netdevsim420 eni420np1: renamed from eth0
[ 1240.506651][T11134] Could not find device with ifindex 2000 in netnsfd 11
[ 1240.507433][T11134] Could not find netns with fd: 2000
[ 1240.508062][T11134] Cannot link a netdevsim to itself
[ 1240.509120][T11134] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).