Information routing system and apparatus
AssigneeNortel Networks Limited
InventorRichard H. Crump
Life of this patent
Estimating the term…
Abstract
An information routing system and apparatus includes separate control and forwarding planes. The control plane is split into box management control functions and routing control functions. The box management control functions are isolated to a single processing card, while the routing control functions are distributed across multiple processing cards. The routing table is also distributed across multiple processing cards. The multiple processing cards are interconnected via a high-speed backplane bus for control plane traffic and by a fabric for forwarding plane traffic.
Claims18
An information routing system comprising:
- at least one control processor component;
- at least one service termination component;
- control plane logic including box management control logic isolated to the at least one control processor component and routing control logic distributed across the at least one control processor component and the at least one service termination component;
- forwarding plane logic separate from the control plane logic and distributed across the at least one control processor component and the at least one service termination component;
- routing table management logic distributed across the at least one control processor component and the at least one service termination component;
- a control interface for transporting control plane information between the at least one control processor component and the at least one service termination component;
- and
- a routing fabric separate from the control interface for transporting forwarding plane information between the at least one control processor component and the at least one service termination component.
An information routing apparatus comprising:
- at least one control processor component;
- at least one service termination component;
- control plane logic including box management control logic isolated to the at least one control processor component and routing control logic distributed across the at least one control processor component and the at least one service termination component;
- forwarding plane logic separate from the control plane logic and distributed across the at least one control processor component and the at least one service termination component;
- routing table management logic distributed across the at least one control processor component and the at least one service termination component;
- a control interface for transporting control plane information between the at least one control processor component and the at least one service termination component;
- and
- a routing fabric separate from the control interface for transporting forwarding plane information between the at least one control processor component and the at least one service termination component.
Dependencies are inferred from the claim text.