Patent ID: 7843837
Filing Date: 2010-11-30
Classification: H04L,H04Q

Abstract:
1. A switch for connection to a hierarchical network, the switch comprising control logic for performing a method for managing flow of protocol information in a node of the hierarchical network in which the protocol information is communicated between network nodes in topology state elements, the switch comprising: a checking component for checking topology state elements generated by the node to identify protocol information encapsulated therein; and a transmitting component for selectively allowing transmittal of the topology state elements from the node to lower levels of the network based on the protocol information identified, wherein the network comprises a PNNI network and the topology state elements are PTSEs and wherein the protocol information for which transmittal to lower levels of the network is disallowed comprises Internal Reachable ATM Address, External Reachable ATM Address, Nodal State Parameter, Uplinks, and PAR Service protocol information.