Method and system for managing traffic in fibre channel systems
First Claim
1. A method for routing fibre channel frames using a fibre channel switch element, comprising:
- inserting a time stamp value in a fibre channel frame that is received at a receive segment of the fibre channel switch element;
determining if a timeout occurs after a frame arrives at a receive buffer; and
processing the frame if the timeout occurred.
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Accused Products
Abstract
Method and system for routing fibre channel frames using a fibre channel switch element is provided. The method includes, inserting a time stamp value in a fibre channel frame that is received at a receive segment of the fibre channel switch element; determining if a timeout occurs after a frame arrives at a receive buffer; and processing the frame if the timeout occurred. The method also includes, determining if a delta time value, which provides an accumulated wait time for a frame, is present in frame data; subtracting the delta time stamp value from a global time stamp value and using the resulting time stamp value to determine frame timeout status in the fibre channel switch element. A timeout checker circuit declares a timeout after comparing a time stamp value that is inserted in a fibre channel frame with a programmed time out value and a global counter value.
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Citations
15 Claims
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1. A method for routing fibre channel frames using a fibre channel switch element, comprising:
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inserting a time stamp value in a fibre channel frame that is received at a receive segment of the fibre channel switch element;
determining if a timeout occurs after a frame arrives at a receive buffer; and
processing the frame if the timeout occurred. - View Dependent Claims (2, 3, 4, 5, 6, 7, 14)
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8. A fibre channel switch element for routing fibre channel frames, comprising:
a receive and transmit segment for receiving and transmitting fibre channel frames, wherein the receive and transmit segments include a timeout checker circuit that declares a timeout after comparing a time stamp value that is inserted in a fibre channel frame with a programmed time out value and a global counter value. - View Dependent Claims (9, 10, 11, 12, 13, 15)
Specification