System and Method for Establishing Protected Connections
First Claim
1. A method for establishing protected connections, comprising:
- determining a primary path to a first node through a first layer of a multi-layer network, the primary path comprising a plurality of first layer links, at least one link of the plurality of first layer links comprising at least one second layer link at a second layer; and
determining a secondary path to the first node through the first layer, wherein;
upon detecting a first link of the plurality of first layer links is protected against link failure by the at least one second layer link, the secondary path comprises the first link of the first layer; and
upon detecting a second link of the plurality of first layer links is not protected against link failure by the at least one second layer link, the secondary path comprises a third link of the first layer.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for establishing protected connections includes determining a primary path to a first node through a first layer of a multi-layer network. The primary path comprises a plurality of first layer links. At least one link of the plurality of first layer links comprises at least one second layer link at a second layer. The method also includes determining a secondary path to the first node through the first layer. Upon detecting a first link of the plurality of first layer links is protected against link failure by the at least one second layer link the secondary path comprises the first link of the first layer. Additionally, upon detecting a second link of the plurality of first layer links is not protected against link failure by the at least one second layer link, the secondary path comprises a third link of the first layer.
51 Citations
24 Claims
-
1. A method for establishing protected connections, comprising:
-
determining a primary path to a first node through a first layer of a multi-layer network, the primary path comprising a plurality of first layer links, at least one link of the plurality of first layer links comprising at least one second layer link at a second layer; and determining a secondary path to the first node through the first layer, wherein; upon detecting a first link of the plurality of first layer links is protected against link failure by the at least one second layer link, the secondary path comprises the first link of the first layer; and upon detecting a second link of the plurality of first layer links is not protected against link failure by the at least one second layer link, the secondary path comprises a third link of the first layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A system for establishing protected connections, comprising:
-
an interface operable to detect the type of protection of a link; and a processor coupled to the interface and operable to; determine a primary path to a first node through a first layer of a multi-layer network, the primary path comprising a plurality of first layer links, at least one link of the plurality of first layer links comprising at least one second layer link at a second layer; and determine a secondary path to the first node through the first layer, wherein; upon the interface detecting a first link of the plurality of first layer links is protected against link failure by the at least one second layer link, the secondary path comprises the first link of the first layer; and upon the interface detecting a second link of the plurality of first layer links is not protected against link failure by the at least one second layer link, the secondary path comprises a third link of the first layer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. Logic embodied in a computer readable medium, the computer readable medium comprising code operable to:
-
determine a primary path to a first node through a first layer of a multi-layer network, the primary path comprising a plurality of first layer links, at least one link of the plurality of first layer links comprising at least one second layer link at a second layer; and determine a secondary path to the first node through the first layer, wherein; upon detecting a first link of the plurality of first layer links is protected against link failure by the at least one second layer link, the secondary path comprises the first link of the first layer; and upon detecting a second link of the plurality of first layer links is not protected against link failure by the at least one second layer link, the secondary path comprises a third link of the first layer. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
-
Specification