Configure Aggregated Ethernet Link Speed

On aggregated Ethernet interfaces, you can set the required link speed for all interfaces included in the bundle. All interfaces that make up a bundle must be the same speed. If you include in the aggregated Ethernet interface an individual link that has a speed different from the speed you specify in the link-speed parameter, an error message will be logged. To set the required link speed, include the link-speed statement at the [edit interfaces interface-name aggregated-ether-options] hierarchy level:

[edit interfaces interface-name aggregated-ether-options]

link-speed speed; 

speed can be in bits per second either as a complete decimal number or as a decimal number followed by the abbreviation k (1000), m (1,000,000), or g (1,000,000,000).