What is the maximum number of ISLs that can be combined to enhance the performance...

In a B-Series trunk group, the maximum number of Inter-Switch Links (ISLs) that can be combined to enhance the performance and availability of switch connections is 8. By aggregating up to 8 ISLs into a single trunk group, the system increases bandwidth and provides redundancy, ensuring that the loss of a single ISL does not impact the overall connectivity or performance.

References:

HPE B-Series Switches Overview

HPE Networking Solutions