| Patent application number | Description | Published |
|---|
| 20100080228 | Demand-based distribution of internet protocol routing information across a network - Systems and methods are described that disassociate Internet route table growth from the ability of a router to maintain service. A network operator may base their network design using predetermined devices implemented from the beginning of service as constrained routers. This eliminates concern that these devices would require upgrade or replacement in the future. | 04-01-2010 |
| 20100080233 | Demand-based distribution of internet protocol forwarding information within a router - Systems and methods are described that reduce the amount of forwarding table state on components within routers. This is performed by having a router line card generate a prefix-request message to its central processor which contains a full routing table. Line cards only populate their forwarding tables for packets needed to transmit. By being only concerned with information of packets that are traversing each line card, the amount of required memory and processing required may be reduced for a complete forwarding table. | 04-01-2010 |
| 20100080234 | Anycast-based internet protocol redirection to alleviate partial routing tables - Systems and methods are described that instruct routers having constrained hardware/memory to redirect all outbound traffic to a helper router. The helper router contains a full routing table that can forward any packet to its destination. In a large service provider network, helper routers may be distributed at multiple locations across the network. Since packets must detour through the helper router, the distributed helper routers minimize latency. | 04-01-2010 |
| 20100142543 | METHODS AND APPARATUS TO ANALYZE AUTONOMOUS SYSTEM PEERING POLICIES - Methods and apparatus to analyze autonomous system (AS) peering policies are disclosed. A disclosed example method comprises obtaining routing information from two or more border routers of a first AS, wherein the routing information identifies two or more routes to a prefix associated with a second AS, and wherein the second AS is a peer of the first AS, identifying one of the two or more routes as an inferior route advertised by the second AS based on the routing information, and determining whether a routing impact is present within the first AS due to the advertised inferior route. | 06-10-2010 |
| 20110013518 | Demand-Based Distribution Of Internet Protocol Forwarding Information With A Router - Systems and methods are described that reduce the amount of forwarding table state on components within routers. This is performed by having a router line card generate a prefix-request message to its central processor which contains a full routing table. Line cards only populate their forwarding tables for packets needed to transmit. By being only concerned with information of packets that are traversing each line card, the amount of required memory and processing required may be reduced for a complete forwarding table. | 01-20-2011 |
| 20110064083 | Anycast-Based Internet Protocol Redirection To Alleviate Partial Routing Tables - Systems and methods are described that instruct routers having constrained hardware/memory to redirect all outbound traffic to a helper router. The helper router contains a full routing table that can forward any packet to its destination. In a large service provider network, helper routers may be distributed at multiple locations across the network. Since packets must detour through the helper router, the distributed helper routers minimize latency. | 03-17-2011 |
| 20110142054 | METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO MANIPULATE PACKET ROUTING - Example methods, apparatus and articles of manufacture to manipulate packet routing are disclosed. A disclosed example method includes extracting a destination address from a first packet, querying a route table based on the destination address to obtain a first label associated an egress router, querying the route table based on the destination address to obtain a second label associated with an interface of the egress router, forming a second packet from the first packet, the second packet including the first and second labels, and routing the second packet to the egress router based on the first label. | 06-16-2011 |
