[  528.381900][ T6493] netdevsim netdevsim298 eni298np1: renamed from eth0
[  528.488649][ T6490] netdevsim netdevsim696 eni696np1: renamed from eth1
[  530.978572][ T6481] Could not find device with ifindex 2000 in netnsfd 11
[  530.980719][ T6481] Could not find netns with fd: 2000
[  530.981690][ T6481] Cannot link a netdevsim to itself
[  530.982851][ T6481] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).