| McData Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20120106393 | PROTOCOLS FOR CONNECTING INTELLIGENT SERVICE MODULES IN A STORAGE AREA NETWORK - Implementations are disclosed that provide protocols for connecting an intelligent service module within a storage area network (SAN). The protocols support physical connections between the intelligent service module and a director-level switch of the SAN. In some variations, the intelligent service module may comprise a director service module (DSM), a domain-sharing leaf switch service module (LSSM), or a non-domain-sharing LSSM. The protocols provide for establishing link parameters and negotiating responsibilities between the intelligent service module and the director-level switch. In one configuration, for example, ELP and ELP_ACCEPT frames may be used to establish the link parameters. In another configuration, ESC and ESC_ACCEPT frames may be used to negotiate responsibilities between the intelligent service module and the director-level switch. Other configurations also provide an ownership status of the intelligent service module that is used to determine whether the switch can initiate management of the intelligent service module. | 05-03-2012 |
| 20080225859 | METHOD FOR SCORING QUEUED FRAMES FOR SELECTIVE TRANSMISSION THROUGH A SWITCH - A method includes determining a priority of each of a plurality of frames, wherein the priority is a function of an initial value dependent on content of each said frame and one or more adjustment values independent of content of each said frame, and selecting the frame with the highest determined priority for transmission through the device prior to transmission of any other of the frames. A system includes a receiving port configured to receive frames and assign an initial priority to each frame, a queue configured to insert queue entries associated with received frames on the queue, each queue entry being inserted at a queue position based on the initial priority assigned to the queue entry, the queue further configured to reorder queue entries based on readjusted priorities of the queue entries; and a transmitter switch configured to transmit the frame having the highest priority before transmitting any other frame. | 09-18-2008 |
