[  993.104017][T12139] netdevsim netdevsim437 eni437np1: renamed from eth0
[  993.210790][T12137] netdevsim netdevsim553 eni553np1: renamed from eth1
[  995.013625][T12626] Could not find device with ifindex 2000 in netnsfd 11
[  995.014628][T12626] Could not find netns with fd: 2000
[  995.015360][T12626] Cannot link a netdevsim to itself
[  995.016080][T12626] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).