Patent ID: 6757306
Filing Date: 2004-06-29
Classification: H04J

Abstract:
In a network having a plurality of line terminating equipment in communication with each other over a line, the line including one or more sections, each line terminating equipment being capable of communicating over the line using a line data communication channel and a section data communication channel, and wherein one or more point-to-point line data communications channel links form a first path between a first node and a second node, and one or more point-to-point section data communications channel links form a second path between the first node and the second node, a method for transmitting routing information, the method comprising:computing a first metric value by computing a sum of routing metric values for the point-to-point line data communications channel links that form the first path between the first node and the second node; computing a second metric value by computing a sum of routing metric values for the point-to-point section data communications channel links that form the second path between the first node and the second node; and transmitting Intermediate System to Intermediate System Level 2 routing information over the first path instead of over the second path based on the computed sums.