High capacity router having redundant components
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 26, 2005
Grant Date -
N/A
app pub date -
Nov 21, 2000
filing date -
Nov 21, 2000
priority date (Note) -
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Importance
Abstract
A router includes multiple routing engines. If the active routing engine fails, a backup one of the routing engines detects the failure and assumes the role of active routing engine. A redundancy controller circuit, connected to the multiple routing engines, facilitates the selection and switching of the routing engines. Portions of the packet forwarding engine, in addition to the routing engine, may be redundantly implemented. The active routing engine controls the selection of the redundant portion of the packet forwarding engine.
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