Nortel Networks Corporation

Ronald L Steeves

Nishanthan M T Perinpanathan

Britney Charles

Vincent Y Chen

Chouinard Marc

Nishanthan Mt Perinpanathan

An end user/station can dynamically control the service levels to/from a second user/station (i.e., locally or remotely controlling service levels). The service levels being provided over packet based networks (which may include Internet Protocol (IP) networks). Dynamic control may be provided for either or both of the service level (e.g., priority of transmission, class or type of service, bandwidth, etc.) and allocation of the costs associated with the service levels provided to users of the embodiments. In some embodiments, users, subscribing to a level of service (e.g., a set bandwidth and/or type of service) can request and obtain a different (e.g., better or worse) level of service (e.g., higher bandwidth access, higher priority of transmissions, etc.) for each call or session between the user and a called station over the packet network. Moreover, the level of service provided for the upstream direction (i.e., transmissions from the user) can be different from the level of service provided for the downstream direction (i.e., transmissions to the user). Further, the settlement procedures for the costs of these services can be allocated to the user, to the station called by the user, or a third station.

Method for controlling service levels over packet based networks

In a packet communications network comprising primary packet and secondary communication networks, a method and apparatus are disclosed for using a primary path connection to exchange additional address information between routing nodes so that the routing nodes can discover secondary path connections between routing nodes that may be used for future communication. If a packet merits additional address information, additional address information relating to a secondary communication network address for a source routing node is included in the packet header of an outgoing packet. It is determined whether an incoming packet includes additional address information and if so, the additional address information is stored so that it is associated with the primary network address of the source host node of the packet. The primary network addressing information, and any secondary network addressing information, is passed to the route calculation component of the routing node. The route calculation component makes the routing decisions and the packet is forwarded to a forwarding engine.

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Kanata, Canada

Ronald L Steeves