| 20110085445 | METHODS AND APPARATUS TO DESIGN A SURVIVABLE INTERNET PROTOCOL LINK TOPOLOGY - Methods and apparatus to design a survivable Internet Protocol link topology are disclosed. An example method to generate a network topology is described, which includes identifying a plurality of potential express links based on a first subset of a plurality of physical links coupling a plurality of communication network nodes, wherein one or more of the potential express links includes a network layer link traversing more than one of the physical links, determining an amount of network layer traffic that may be carried on a first potential express link, selecting the first potential express link as a chosen express link based on at least one of the traffic or a first number of network layer links on the physical links, adding the chosen express link to a list of express links, generating a plurality of network topologies by selecting one or more different numbers of express links from the list of express links, and selecting one of the generated network layer topologies based on a cost of the generated network layer topologies. | 04-14-2011 |
| 20110085469 | METHODS AND APPARATUS TO DETERMINE A CAPACITY FOR A NETWORK LAYER TOPOLOGY - Methods and apparatus to determine a capacity for a network topology are disclosed herein. An example method is described, which includes receiving a network layer topology comprising a plurality of network layer links, applying weights to the network layer links, selecting one of a plurality of traffic elements, the selected traffic element comprising endpoint nodes and a traffic demand, determining, for one or more of the network layer links, whether the selected traffic element may be routed on the network layer link without adding capacity to the network layer link, applying penalties to the weights associated with the network layer links that cannot support the selected traffic element without adding capacity, determining, based on the weights and penalties of the network layer links, a routing path including one or more of the network layer links between the endpoint nodes, adding the selected traffic element to the network layer links on the routing path, and determining the capacity of the network layer links based on the selected traffic element. | 04-14-2011 |
