Abstract: Switching and routing functions may be provided in a data plane of a network switch by having all functions and algorithms needed to handle all related interface, logical and physical, under one interface manager to keep track of bindings between virtual interfaces and logical interfaces, as well as maintain the statuses of ports that belong to the virtual interface and the actual logical ports. When the actual interface goes down, the virtual interface may go down along with it. The bindings may also include definitions. All of these bindings may be located in a single routing information base (RIB) database, eliminating the need for multiple bindings to be kept in various places. Furthermore, a hardware abstraction layer in the control plane can also then be mirrored in the data plane, eliminating the need for the customer to create a layer performing the same tasks.

Abstract: A solution for convergence for connectivity fault management includes, at a device having a network interface, maintaining a continuity state. The continuity state is associated with a Connectivity Fault Management (CFM) Maintenance Association (MA) comprising multiple Maintenance End Points (MEPs) including a first MEP associated with the device. The maintaining includes setting the state to a value indicating continuity of the MA if a converged notification is received from the first MEP. The maintaining also includes setting the state value to a value indicating loss of continuity of the MA if a predetermined number of echo packets sent by the device towards the MEPs other than the first MEP are not received by the device within a predetermined time period.

Abstract: A solution for optimized power usage for a data network includes, at a network device coupled to a network, examining traffic usage information of the network and power usage information of a plurality of routers in the network, and calculating a path from a first router of the network to a second router of the network based at least in part on the traffic usage information and the power usage information. The calculated path has relatively low aggregate power usage for routers comprising the path. The solution also includes storing an indication of whether one or more of the plurality of network routers may be placed in a power conservation mode based at least in part on the calculating.

Abstract: A routing device that provides redundancy for a node is envisioned. The routing device has a dynamic routing module operable to start functioning at a particular time. A configuration manager is provided. The configuration manager is coupled to a second routing device and stores configuration information associated with operational characteristics of a dynamic routing module associated with the second routing device. A network information module stores routing information from the second routing device. The dynamic routing module is executed upon an indication that the second dynamic routing device is no longer operating, and the configuration device configures the dynamic routing module according to the stored configuration information.

Abstract: A solution for optimized power usage for a data network includes, at a network device coupled to a network, examining traffic usage information of the network and power usage information of a plurality of routers in the network, and calculating a path from a first router of the network to a second router of the network based at least in part on the traffic usage information and the power usage information. The calculated path has relatively low aggregate power usage for routers comprising the path. The solution also includes storing an indication of whether one or more of the plurality of network routers may be placed in a power conservation mode based at least in part on the calculating.

Abstract: A BGP route monitoring device includes a routing information receiving unit configured to receive BGP routing information. The device also includes a first database storing a plurality of pieces of BGP routing information registered in an IRR server. The server also includes a routing failure detecting unit to classify the received BGP information into states by comparing the received BGP information with the first database and to determine whether the received BGP routing information is an invalid path based on the classified states. In this configuration, the plurality of states include a state where Prefix of the received BGP information matches Prefix of BGP routing information in the first database, the PrefixLength of the received BGP information is shorter than PrefixLength of the BGP routing information in the first database, and Origin AS number of the received BGP routing information matches Origin AS number of the BGP routing information in the first database.

Abstract: Graceful/hitless restart features from a routing/signaling protocol may be utilized along with synchronization between cluster members in order to provide routing capabilities in a clustering environment. During normal operation, the active cluster member may operate the routing protocol(s) and communicate with the neighboring components using the cluster's address. As the active member learns the routes to the destinations, the routing data may be propagated to the stand-by cluster members across an internal communication mechanism. Configuration information for the routing component may also be propagated to the stand-by cluster members. Upon failure of the active routing component, the standby routing component may be started up such that neighboring routing components located outside of said cluster do not recalculate network topology based on said failure. This allows for failover to occur without affecting neighboring components and unduly burdening the system.