You set the target to be monitored using the monitor command page 385 in your book.
[no] monitor mac MAC-ADDR mirror <1-4 | NAME-STR>
Set up traffic monitoring for a given MAC address. Network
traffic with this MAC address as the source or destination is
copied to the mirror port.
MAC-ADDR - MAC address to be monitored
- Type of traffic to monitor:
src - Monitor traffic with MAC-ADDR as the source.
dst - Monitor traffic with MAC-ADDR as the destination.
both - Monitor traffic with MAC-ADDR as the source or destination.
<1-4> - Mirror destination number
NAME-STR - Friendly name associated with the mirror destionation number.
This may also help
How to configure remote and intelligent mirroring
on ProCurve switches