Applied Micro Circuits Corporation

Qlogic Corporation

Steven Robalino

William J Wen

John M Fike

Patricia E Hareski

David T Johnson

A method and fibre channel switch element is provided for isolating a defective device that is coupled to a fibre channel arbitrated loop. The method includes, isolating a port if a loop initialization primitive ('LIP') is detected from a device coupled to the arbitrated loop; configuring the device and acquiring an AL_PA; determining if the device is sending LIPs; and isolating the device if the device continues to send LIPs. The switch element includes, a port having an isolation state machine that allows the switch element to isolate a device whose behavior may result in disruption of other devices in the network. The state machine may also configure a device after detecting disruptive parameters from the device and perform diagnostic operations on the device.

Method and system for minimizing disruption in common-access networks

The invention provides an apparatus, and related method, for receiving and synchronizing parallel data transmitted over multiple serial data channels. The synchronization technique uses a channel lock FIFO buffer on each received serial data channel. The FIFO buffers are configured to tolerate a significant amount of jitter between channels and clock tree delay within the synchronization apparatus.

Growing community of inventors

Austin, TX, United States of America

Steven Robalino