[  761.654604][T14767] netdevsim netdevsim457 eni457np1: renamed from eth0
[  761.668168][T14769] netdevsim netdevsim544 eni544np1: renamed from eth1
[  762.253472][T14755] Could not find device with ifindex 2000 in netnsfd 11
[  762.254344][T14755] Could not find netns with fd: 2000
[  762.254723][T14755] Cannot link a netdevsim to itself
[  762.255143][T14755] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).