You probably have seen the following on your Juniper JunOS device :
dcd[15676]: ae60 : Warning: aggregated-ether-options link-speed no kernel value! default to 0
dcd[1103]: ae60 : aggregated-ether-options link-speed set to kernel value of 1000000000
This mean that your aggregated interface (ae) does not have any link-speed statement. By the book, this statement should be declared in your configuration such as :
set interfaces aeX aggregated-ether-options link-speed <10m | 100m | 1g | 8g | 10g | 40g | 50g | 80g>
So let’s say we have a bond composed of 2 x 10 Gbps and the interface name is ae60 :
set interfaces ae60 aggregated-ether-options link-speed 10g
You may now commit your configuration, the notification should disappear from the system logs.