Interworking circuit emulation service over packet and IP/MPLS packet processing
Originating portfolio: ALU
Estimated expiration: 2028-Oct-02
Listed For Sale
Initial bid date: 2018-May-01
Potentially relevant companies (8): Allied Telesis Holdings KK, Aruba Networks, Inc., Extreme Networks, Inc., Hewlett Packard Enterprise, Huawei Technologies Co., Ltd., Juniper Networks Inc., Sonus Networks, Inc., ZTE Corporation
Products & technologies (3): Communications:Data, Network:Management, Telecom:Subscriber Services
A system and method are provided for implementing CESOP inexpensively yet effectively implemented across an MPLS or an IP network. A Zarlink chip provides CESOP functionality, providing a TDM pseudowire by converting TDM streams into Ethernet packets. These Ethernet packets can be processed by a Marvell chip, which has the ability to perform QoS functions on the packets. The Marvell chip converts the Ethernet packets into MPLS or IP packets for transmission over a packet network. Use of a single virtual circuit label, invisible to the packet network for routing purposes, within the Ethernet packet allows Marvell chips at each end of the emulated circuit to tie traffic to a particular customer and to thereby apply appropriate QoS constraints.
1. A method of providing a Circuit Emulation Service over Packet (CESoP) service over a Multiprotocol Label Switching (MPLS) network, the method comprising:
receiving Time Division Multiplexing (TDM) data from a customer;
encapsulating the received TDM data and a virtual circuit (VC) label into an Ethernet packet, the VC label identifying the customer;
transmitting the Ethernet packet into the MPLS network:
receiving the Ethernet packet at a packet processor;
in the packet processor, de-encapsulating the Ethernet packet;
retrieving the TDM data and the VC label;
encapsulating the TDM data and the VC label into a MPLS packet by adding an MPLS tunnel label while preserving the VC label; and
associating the MPLS packet with the customer using the retrieved VC label so that traffic carried over the MPLS network using the CESoP service is tied to the customer.
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