| 摘要 |
<p>One embodiment of an apparatus for communicating routing and attribute information for a transaction between hubs in a computer system is disclosed. The apparatus includes a data path (151) to output a packet header for a transaction. The packet header includes a transaction descriptor routing field to identify an initiating agent (135) that initiated the transaction. The transaction descriptor routing field includes a hub identification portion a pipe identification portion. The hub identification portion identifies a hub that contains the initiating agent (135). The pipe identification portion further identifies the initiating agent (135) within the identified hub if the transaction has no ordering requirement with respect to a second agent (165) in the identified hub.</p> |
