This article provides detailed instructions on configuring up to 128 AE's 0-128 Link Aggregation Group (LAG) interfaces on PTX10K1 series routers.

This configuration enhances network performance and reliability by aggregating multiple physical interfaces into a single logical interface.

Difficulty in managing multiple individual interfaces. Some customers experience issues understanding how the aggregated interfaces are numbered from ae0 through ae4091.

The maximum number of aggregated interfaces supported by different routers, however for PTX Series routers, you can configure a maximum of 128 aggregated interfaces.

Customers can configure upto 128 aggregate bundles with range from ae0 to ae4091

Please refer to the following document:

https://www.juniper.net/documentation/us/en/software/junos/fusion/topics/task/chassis-aggregated-devices-configuring.html