[ 1238.261100][T11139] netdevsim netdevsim420 eni420np1: renamed from eth0
[ 1238.373945][T11138] netdevsim netdevsim611 eni611np1: renamed from eth1
[ 1241.670772][T11131] Could not find device with ifindex 2000 in netnsfd 11
[ 1241.671489][T11131] Could not find netns with fd: 2000
[ 1241.672043][T11131] Cannot link a netdevsim to itself
[ 1241.672739][T11131] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).