Patent ID: 7065038
Filing Date: 2006-06-20
Classification: H04J,H04L

Abstract:
1. A system adapted to configure an intermediate network node to implement redundancy among a pair of line cards of the node in the event of a failure to one of the line cards, the system comprising; a performance routing engine (PRE) of the node; data paths internal to the node, the internal data paths coupling the pair of line cards to the PRE; and an alias logic circuit configured to select data from one of the pair of line cards to the PRE, each line card of the pair of line cards having a different assigned slot number, the alias logic circuit selecting a first one of the different assigned slot numbers and associating the first slot number with data from both line cards of the pair of line cards, and the alias logic circuit further configured to send identical copies of data over the internal data paths to the pair of line cards.