Method of establishing MPOA shortcut virtual channel connections
First Claim
1. In an Asynchronous Transfer Mode (ATM) based Multiple Protocol Over ATM (MPOA) network, a method of establishing a bidirectional shortcut Virtual Channel Connection (VCC) between a calling party and a called party said method comprising the steps of:
- initiating a call request by sending a setup message from said calling party to said called party;
initializing said called party and sending a connect message to said calling party;
initializing said calling party and sending a ready indication message to said called party on said shortcut VCC when said calling party is ready to receive data;
periodically re-sending said ready indication message to said called party until a ready acknowledge message or data frame is received by said calling party; and
sending data from said called party to said calling party upon receipt by said called party of said ready indication message or at least one data frame.
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0 Petitions
Accused Products
Abstract
A method of establishing calls between an ingress MPC (the calling party) and an egress MPC (the called party) in MPOA enabled ATM based networks. The call establishment method utilizes the call request SETUP, CONNECT and CONNECT_ACK messages in creating the shortcut VCC between ingress and egress MPCs. The calling party is adapted to send a READY_IND message in a reliable manner to the called party indicating that it is ready to receive frames over the shortcut VCC. The called party starts sending data over the shortcut VCC only when it knows that the calling party is ready. The called party knows the calling party is ready upon receipt of a READY_IND message or at least one data frame on the shortcut VCC. The calling party knows that the called party is ready to receive frames when it receives the CONNECT message. Since the READY_IND message sent by the calling party may get lost, the calling party is adapted to re-send the READY_IND message repeatedly until it is certain the called party has received it. The calling party utilizes a timer whereupon expiration, the READY_IND message is re-sent to the called party and the timer is restarted.
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Citations
14 Claims
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1. In an Asynchronous Transfer Mode (ATM) based Multiple Protocol Over ATM (MPOA) network, a method of establishing a bidirectional shortcut Virtual Channel Connection (VCC) between a calling party and a called party said method comprising the steps of:
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initiating a call request by sending a setup message from said calling party to said called party;
initializing said called party and sending a connect message to said calling party;
initializing said calling party and sending a ready indication message to said called party on said shortcut VCC when said calling party is ready to receive data;
periodically re-sending said ready indication message to said called party until a ready acknowledge message or data frame is received by said calling party; and
sending data from said called party to said calling party upon receipt by said called party of said ready indication message or at least one data frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification