Hi,
From the release notes:
"The ACE10 and the ACE20 are module options for the Catalyst 6500 series switch and require Cisco
IOS Release 12.2(18)SXF4 or later with a Multilayer Switch Feature Card (MSFC3) and the following
models of Supervisor 720 Engines: WS-SUP720, WS-SUP720-3B, and WS-SUP720-3BXL.
The ACE10 and the ACE20 modules require Cisco IOS Release 12.2(33)SXH or later running on a
Catalyst 6500 series switch with a Multilayer Switch Feature Card (MSFC3) and the following models
of Supervisor 720-10GE engines: VS-S720-10G-3C and VS-S720-10G-3CXL."
HTH
Cathy