Techniques for routing data between network areas

Abstract

Techniques for routing data between network area are disclosed, In one particular exemplary embodiment, the techniques may be realized as a method for routing data between layer 2 network areas of backbone bridges comprising the steps of receiving data at a network element containing an internally terminated Network to Network Interface (NNI) for a plurality of network areas, identifying a destination address associated with the data, determining a network area of the plurality of network areas associated with the data, and performing one or more data flow treatments associated with the data using the internally terminated Network to Network Interface (NNI).

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This patent application is related to U.S. patent application Ser. No. 11 / 899,118, filed Sep. 4, 2007, which is hereby incorporated by reference herein in its entirety.FIELD OF THE DISCLOSURE[0002]The present disclosure relates generally to network communications and, more particularly, to techniques for routing data between network areas.BACKGROUND OF THE DISCLOSURE[0003]Networks may be logically subdivided into Virtual Private Networks (VPNs), Virtual Local Area Networks (VLANs), or another logical subnets, network areas, or domains. For example, a VLAN may be further logically subdivided by a user into a plurality of user VLANs or VPNs. Provider Backbone Bridging (PBB) and / or Provider Link State Bridging (PLSB) may be used to separate an enterprise domain from one or more user domains by using an additional MAC (Media Access Control) address header in an Ethernet Frame. PLSB may enable the use of a link state protocol to improve the sh...

AI Technical Summary

Benefits of technology

[0006]Techniques for routing data between network area are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for routing data between layer 2 network areas of backbone bridges comprising the steps of receiving data at a network element containing an internally terminated Network to Network I

Problems solved by technology

Such routing may be difficult to increase in scale and manage as the number of user VPNs increases.

Thus, this approach may also require external routing and may add additional overhead and complexity.

In view of the foregoing, it may be understood that there may be significant problems and shortcomings associated with current technologies for routing data between network areas.

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