Patent ID: 7853715
Filing Date: 2010-12-14
Classification: H04L

Abstract:
1. A method comprising: receiving an input for either a nodal diverse constraint or a link diverse constraint for an alternate circuit path between a first node and a node in a network, the network including a plurality of elements that includes a protected link; generating a primary circuit path between the first node and the second node, the primary circuit path including a first element and a set of elements selected from the plurality of elements; selectively generating a nodal diverse alternate circuit path in response to receiving a nodal diverse constraint input or a link diverse alternate circuit path in response to receiving a link diverse constraint input; storing a list in a memory, the list identifying the first element, the set of elements and the protected link as being inaccessible for use in generating an alternate circuit path; and generating the alternate circuit path between the first node and the second node using the list and such that the alternate circuit path does not include the first element, the set of elements and the protected link identified by the list.