Network switching and/or routing devices can use multiple priority data streams and queues to support prioritized serial transmission of data from line cards (or the like) through a fabric switch to other line cards (or the like). Preemption logic is used to insert within a data stream commands indicating a switch from one priority level data to another. Delimiter commands and combination switch/delimiter commands can also be used. Multiple crossbars are implemented in the fabric switch to support the various data stream priority levels.

 
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< Methods, apparatus and computer programs for processing alerts and auditing in a publish/subscribe system

> Method and system for programmable input/output transceiver wherein transceiver is configurable to support a plurality of interface standards

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