Method and apparatus for transporting DS-X signals through a packet network
First Claim
19. (New) A method for transporting DS-X traffic within a distributed communications system leveraging a packet network, the communications system including an end node coupled to the packet network, the method comprising the steps of:
- determining a configured DS-X loading of the end node;
establishing at least one virtual connection within the packet network based on the DS-X loading;
mapping the DS-X traffic entering the end node into packet data; and
transferring the packet data through the at least one virtual connection.
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0 Petitions
Accused Products
Abstract
A method and apparatus for efficiently transporting DS-X traffic in packet form over an ATM or other packet network. Specifically, virtual connection or slot provisioning and/or cell concentration techniques are used to compact the amount of DS-X traffic broadcast between communications system devices such as the access mux and the communications switch and spare bandwidth. In provisioning, a configured DS-X loading of an end node supporting DS-X traffic is ascertained. In turn, a minimum number of virtual connections for bearing packetized DS-X traffic are established, either at communications system configuration or as needed. In concentration processing, a dynamic association between the virtual connections and the DS-X traffic is established, typically on a per frame basis. Only those digital channels entering the node within a given time frame which actually bear DS-X traffic will be assigned a slot within packet. Concentration may be augmented by provisioning to further reduce bandwidth requirements. In other disclosed aspects, permanent virtual channels or PNNI soft permanent virtual connections may be used for the virtual connections where ATM is chosen as the transport protocol.
10 Citations
23 Claims
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19. (New) A method for transporting DS-X traffic within a distributed communications system leveraging a packet network, the communications system including an end node coupled to the packet network, the method comprising the steps of:
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determining a configured DS-X loading of the end node;
establishing at least one virtual connection within the packet network based on the DS-X loading;
mapping the DS-X traffic entering the end node into packet data; and
transferring the packet data through the at least one virtual connection. - View Dependent Claims (20, 21, 22)
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23. (New) In a distributed communications system leveraging a packet network bearing packets having a uniformly sized payload, an apparatus for multiplexing DS-X traffic into the packets, comprising:
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a processor adapted to determine active DS-X traffic entering a communications system node at a given unit time;
a processor adapted to develop a DS-X-packet correspondence based on the active DS-X traffic, the DS-X-packet correspondence defining a minimum number of the packets to bear the active DS-X traffic; and
a processor adapted to map the active DS-X traffic into the payload of at least one of the packets according to the DS-X-packet correspondence.
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Specification
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- Resources
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Current AssigneeInternational License Exchange of America, LLC (Equitable IP Corporation)
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Original AssigneeNortel Networks Limited (Nortel Networks Corporation)
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InventorsDesai, Premal, Bernstein, Greg M., Gullicksen, Jeffrey T.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current370/352
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CPC Class CodesH04L 12/64 Hybrid switching systemsH04L 2012/5621 Virtual private network [VP...H04L 2012/5663 Support of N-ISDNH04Q 11/0478 Provisions for broadband co...
