System and method for AAL5 enhanced encapsulation
AssigneeCisco Technology, Inc.
InventorsJayakumar Jayakumar, Hariprasad Ginjpalli, Durai Chinnaiah
Life of this patent
Estimating the term…
Abstract
A system and method for AAL5 enhanced encapsulation is disclosed. The method, comprises receiving an AAL5 CPCS-SDU at a router; encapsulating the AAL5 CPCS-SDU into an AAL5 enhanced packet at the router; generating an MPLS packet from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header; and routing the MPLS packet over an MPLS network.
Claims40
A method, comprising:
- receiving an Asynchronous Transfer Mode (ATM) Adaptation Layer 5 (AAL5) Common Part Convergence Sublayer-Service Data Unit (CPCS-SDU) at a router;
- encapsulating the AAL5 CPCS-SDU into an AAL5 enhanced packet at the router;
- generating an Multi-protocol Label Switching (MPLS) packet from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprised an ATM header and a control word, the control word comprising a transport type bit to properly identify whether the MPLS packet contains an ATM cell or an AAL5 CPCS-SDU;
- and
- routing the MPLS packet over an MPLS network.
A method comprising:
- receiving an MPLS packet at a router;
- decapsulating the MPLS packet when the MPLS packet is an AAL5 enhanced packet;
- producing an AAL5 CPCS-SDU from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header and a control word, the control word comprising a transport type bit to properly identify whether the MPLS packet contains an ATM cell or an AAL5 CPCS-SDU.
A computer readable medium having stored thereon a plurality of instructions, said plurality of instruction when executed by a computer, cause the computer to perform:
- receiving an AAL5 CPCS-SDU at a router;
- encapsulating the AAL5 CPCS-SDU into an AAL5 enhanced packet at the router;
- generating an MPLS packet from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header and a control word, the control word comprising a transport type bit to properly identify whether the MPLS packet contains an ATM cell or an AAL5 CPCS-SDU;
- and
- routing the MPLS packet over an MPLS network.
A computer readable medium having stored thereon a plurality of instructions said plurality of instructions when executed by a computer, cause said computer to perform:
- receiving an MPLS packet at a router;
- decapsulating the MPLS packet when the MPLS packet is an AAL5 enhanced packet;
- producing an AAL5 CPCS-SDU from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header and a control word, the control word comprising a transport type bit to properly identify whether the MPLS packet contains an ATM cell or an AAL5 CPCS-SDU.
A system, comprising:
- means for receiving an AAL5 CPCS-SDU at a router;
- means for encapsulating the AAL5 CPCS-SDU into an AAL5 enhanced packet at the router;
- means for generating an MPLS packet from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header and a control word, the control word comprising a transport type bit to indicate that the MPLS packet comprises an AAL5 CPCS-SDU;
- and
- means for routing the MPLS packet over an MPLS network.
A system comprising:
- means for receiving an MPLS packet at a router;
- means for decapsulating the MPLS packet when the MPLS packet is an AAL5 enhanced packet;
- means for producing an AAL5 CPCS-SDU from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header and a control word, the control word comprising a transport type bit to indicate that the MPLS packet comprises an AAL5 CPCS-SDU.
A router, comprising:
- a processor;
- and
- memory connected to the processor storing instructions for AAL5 enhanced encapsulation executed by the processor;
- wherein the processor performs the enhanced AAL5 encapsulation, by
- receiving an AAL5 CPCS-SDU;
- encapsulating the AAL5 CPCS-SDU into an AAL5 enhanced packet;
- generating an MPLS packet from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header and a control word, the control word comprising a transport type bit to indicate that the MPLS packet comprises an AAL5 CPCS-SDU;
- and
- routing the MPLS packet over an MPLS network.
A router comprising:
- a processor;
- and
- memory connected to the processor storing instructions for AAL5 enhanced decapsulation executed by the processor;
- wherein the processor performs the AAL5 enhanced decapsulation, by receiving an MPLS packet;
- decapsulating the MPLS packet when the MPLS packet is an AAL5 enhanced packet;
- producing an AAL5 CPCS-SDU from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header and a control word, the control word comprising a transport type bit to indicate that the MPLS packet comprises an AAL5 CPCS-SDU.
Dependencies are inferred from the claim text.