Patent ID: 8149687
Filing Date: 2012-04-03
Classification: H04L,H04Q

Abstract:
1. A method for fault recovery, the method comprising: establishing a first connection comprising first, second, and third ones of a plurality of line cards between a first port and a second port, each of the plurality of line cards including a corresponding one of a plurality of line side interfaces, each of the plurality of line side interfaces configured to communicate with a corresponding one of a plurality of nodes within a network, the first port associated with the first one of the plurality of line cards and the second port associated with the third one of the plurality of line cards, the first one of the plurality of lines cards coupled to the second one of the plurality of line cards via a first cross-connect, the second one of the plurality of line cards further coupled to the third one of the plurality of line cards via a second cross-connect; detecting a failure of the second one of the plurality of line cards; establishing a second connection comprising the first and third ones of the plurality of line cards, and a fourth one of the plurality of line cards between the first port and the second port, the first of the plurality of line cards being further coupled to the fourth one of the plurality of line cards via a third cross-connect, the fourth one of the plurality of line cards further coupled to the third one of the plurality of line cards via a fourth cross-connect; and transmitting network traffic between the first port and the second port on the second connection, wherein the first one of the plurality of line cards is configured to receive a first data stream at a first data rate and output the first data stream at the first data rate, the first one of the plurality of line cards also being configured to receive a second data stream at a second data rate and output the second data stream at the second data rate, the first data rate being different than the second data rate.