Juniper Networks, Inc.

Paul S Traina

Nischal Sheth

Manoj Leelanivas

Steven Lin

Wing Eng

Andrew H Heffernan

Spencer H Greene

Arthur Stine

Techniques are described for implementing one or more logical routers within a single physical routing device. These logical routers, as referred to herein, are logically isolated in the sense that they achieve operational and organizational isolation within the routing device without requiring the use of additional or redundant hardware, e.g., additional hardware-based routing controllers. The routing device may, for example, include a computing platform, and a plurality of software process executing within the computing platform, wherein the software processes operate as logical routers. The routing device may include a forwarding component shared by the logical routers to forward network packets received from a network in accordance with the forwarding tables.

Routing device having multiple logical routers

A system includes a gateway node that contains modular cards that separately implement control and data planes of a network protocol. The separate data and control cards provide for improved system reliability and improved flexibility in managing bandwidth. Control or data cards can be added to the gateway node as needed based on system load.

Modular implementation of a protocol in a network device

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Atherton, CA, United States of America

Paul S Traina