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US 6,665,302 B2Granted
Method and system for handling a loop back connection using a priority unspecified bit rate in ADSL interface
AssigneeResearch Investment Network, Inc.
InventorKenny Ying Theeng Lee
Life of this patent
Estimating the term…
Abstract
A new format for asynchronous transfer mode defines a priority unspecified bit rate format; which uses the same memory structure as that used by the existing UBR and CBR traffic protocols. This format is also used for a loopback operation.
Claims3
A method of testing in a packet based communication system, comprising:
- using a first unspecified class of service for information packets, which is not guaranteed, but which has priority over other packets of unspecified bit rate classes of service;
- using a first and second array in a timing ring wherein said first array is for packets of constant bit rate classes of service and said second array is for packets of unspecified bit rate classes of service;
- and
- using said first unspecified class of service for loopback testing comprising sending a packet of said first unspecified class of service from said timing ring to a specified location and determining an amount of time before an indication of receipt is received from said specified location.
1 more element
A method for testing data traffic within a broadband system comprising the steps of:
- flagging a designated UBR packet to create a priority UBR (P-UBR) packet;
- sending said designated P-UBR packet to a timing slot ring for sequential transmission wherein said timing slot ring includes a first and second array wherein said second array is for said designated P-UBR packet as well as other UBR packets and said first array is for one or more CBR packets;
- sending a message from said timing slot ring to a specific location using said designated P-UBR packet;
- receiving a response from said specific location in said timing slot ring indicating said P-UBR packet has been received;
- and
- determining the amount of time between sending said message and receiving said response to said message.
3 more elements
A system for testing data traffic within a broadband system comprising:
- a designated UBR packet that is flagged to create a priority UBR (P-UBR) packet;
- a timing slot ring wherein said designated P-UBR packet is sent to said timing slot ring for sequential transmission wherein said timing slot ring includes a first and second array wherein said second array is for said designated P-UBR packet as well as other UBR packets and said first array is for one or more CBR packets;
- a message that is sent using said designated P-UBR packet to a specific location;
- a response that is received from said specific location indicating said message was received;
- and
- a timer for determining an amount of time between sending said message and receiving said response to said message.
3 more elements
Dependencies are inferred from the claim text.