Other

Nortel Networks Corporation

Glen William Gibson

David Gary Roberts

Robert Alan Williams

Din-I Tsai

Jiu An

Ramkrishna Vepa

Mahesh Kumar

Sanjay Dhawah

Henry Yeh

Bala Sankaranarayanan

Sam Rajarathinam

A method, apparatus, and system in which a network system includes a virtual graph composed of a plurality individual networks. A first individual network is associated with a first user. The first individual network includes a plurality of service modules modeled to be representing a first set of network elements. The second individual network is associated with a second user. The second individual network includes a plurality of service modules modeled to be representing a second set of network elements. The second set of network element differs in the type of network elements included in the second individual network and the topological order of the network elements in the second individual network than the first set of network elements.

Network system having a virtual-service-module

A data transfer method with peripheral precharge wherein a starting portion of an output data block targeted for a peripheral is transferred to an output buffer for the peripheral using programmed I/O or slave cycles and wherein a virtual address of the output data block is translated into a physical address while the peripheral begins transferring the starting portion from the output buffer and over an output path. A direct memory access operation by the peripheral transfers a remainder portion of the output data block into the output buffer.

Precharging an output peripheral for a direct memory access operation

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San Ramon, CA, United States of America

Glen William Gibson