Network management system and method for performing scalable loss measurements within an access network
First Claim
1. A method for determining unacceptable packet losses in downstream multicast traffic for one or more devices in an access network, said method comprising the steps of:
- causing a trigger probe to be sent to the one or more devices, wherein each trigger probe contains information which causes the corresponding device to start a packet loss measurement, and wherein each device performs the packet loss measurement by accessing counters located within a plurality of received continuity check messages and comparing the counter contents within the plurality of received continuity check messages; and
receiving an unacceptable loss measurement message from one of the devices indicating a number of packet losses over a certain period of time exceeds a predetermined threshold and that the device is experiencing unacceptable packet losses.
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Accused Products
Abstract
A network management system and a method are described herein that determine if one or more devices (e.g., consumer premises equipment(s)) are experiencing an unacceptable packet loss for downstream multicast traffic in an access network. In one embodiment, the network management system performs the following operations: (1) cause a trigger probe to be sent to the one or more devices, where each trigger probe contains information which causes the corresponding device to start a packet loss measurement; and (2) receive an unacceptable loss measurement message from one of the devices if that one device experienced packet losses over a certain period of time that exceeded a predetermined threshold which would be an indication that the one end device is experiencing an unacceptable packet loss.
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Citations
20 Claims
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1. A method for determining unacceptable packet losses in downstream multicast traffic for one or more devices in an access network, said method comprising the steps of:
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causing a trigger probe to be sent to the one or more devices, wherein each trigger probe contains information which causes the corresponding device to start a packet loss measurement, and wherein each device performs the packet loss measurement by accessing counters located within a plurality of received continuity check messages and comparing the counter contents within the plurality of received continuity check messages; and receiving an unacceptable loss measurement message from one of the devices indicating a number of packet losses over a certain period of time exceeds a predetermined threshold and that the device is experiencing unacceptable packet losses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A network management system, comprising:
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a processor; a memory; and instructions which are accessible from said memory and processable by said processor to enable the following; causing a trigger probe to be sent to the one or more devices, wherein each trigger probe contains information which causes the corresponding device to start a packet loss measurement performed by accessing counters located within a plurality of received continuity check messages and comparing the counter contents within the plurality of received continuity check messages; and receiving an unacceptable loss measurement message from one of the devices indicating a number of packet losses over a certain period of time exceeds a predetermined threshold and that the device is experiencing unacceptable packet losses for downstream multicast traffic. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An edge router, comprising:
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a processor; and a memory, where said processor retrieves instructions from said memory and processes those instructions to enable the following; sending a trigger probe to one or more devices, wherein each trigger probe contains information which causes the corresponding device to start a packet loss measurement performed by accessing counters located within a plurality of received continuity check messages and comparing the counter contents within the plurality of received continuity check messages; and receiving an unacceptable loss measurement message from one of the devices indicating a number of packet losses over a certain period of time exceeds a predetermined threshold and that the device is experiencing unacceptable packet losses. - View Dependent Claims (17, 18, 19)
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20. A method for determining unacceptable packet losses in downstream multicast traffic for one or more line terminations in an access network, each line termination being in a bridge-on-line card incorporated within an access node, wherein said method comprises the steps of:
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causing a trigger probe to be sent to the one or more line terminations, wherein each trigger probe contains information which causes the corresponding line termination that is being in the bridge-on-line card to start a packet loss measurement; and receiving an unacceptable loss measurement message from one of the line terminations indicating a number of packet losses over a certain period of time exceeds a predetermined threshold and that the line termination is experiencing unacceptable packet losses.
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Specification