Backplane interface adapter with error control and redundant fabric
First Claim
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1. A network device comprising:
- a plurality of blades, wherein each blade outputs serial data streams with control information;
the plurality of blades comprising a source blade sending data to a receiving blade;
wherein the receiving blade is configured to;
monitor the data received at the receiving blade from the plurality of blades;
detect a synchronization error for the source blade based on the amount of data monitored;
send a first signal to a flow controller based on the synchronization error; and
wherein the flow controller sends a second signal to the source blade indicating that an error has occurred.
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Abstract
A backplane interface adapter with error control and redundant fabric for a high-performance network switch. The error control may be provided by an administrative module that includes a level monitor, a stripe synchronization error detector, a flow controller, and a control character presence tracker. The redundant fabric transceiver of the backplane interface adapter improves the adapter'"'"'s ability to properly and consistently receive narrow input cells carrying packets of data and output wide striped cells to a switching fabric.
403 Citations
11 Claims
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1. A network device comprising:
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a plurality of blades, wherein each blade outputs serial data streams with control information; the plurality of blades comprising a source blade sending data to a receiving blade; wherein the receiving blade is configured to; monitor the data received at the receiving blade from the plurality of blades; detect a synchronization error for the source blade based on the amount of data monitored; send a first signal to a flow controller based on the synchronization error; and wherein the flow controller sends a second signal to the source blade indicating that an error has occurred. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for detecting a synchronization error in a network switch, comprising:
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(a) sorting data received at a receiving slot based on source information; (b) storing the sorted data in a set of data structures; (c) monitoring the levels of data stored in each data structure; (d) detecting at least one of an overflow and underflow condition in the amount of data received from a particular source; and (e) sending a first signal to a flow controller based on the detected overflow or underflow condition; wherein the flow controller sends a second signal based on the first signal indicating that an error has occurred. - View Dependent Claims (8, 9)
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10. A method for managing out-of-synchronization traffic flow, comprising:
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(a) monitoring a level of traffic flow received and traffic synchronization; (b) determining whether an out-of-synchronization condition exists; (c) initiating a re-synchronization routine when said out-of-synchronization condition exists;
the re-synchronization routine comprises sending a first signal to a flow controller based on said out-of-synchronization condition and the flow controller sends a second signal based on the first signal indicating that an error has occurred. - View Dependent Claims (11)
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Specification