Traffic management with limited-buffer switches
AssigneeTibit Communications, Inc.
InventorEdward W. Boyd
Life of this patent
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Abstract
One embodiment provides a system and method for managing traffic in a network that includes at least a passive optical network (PON). During operation, the system obtains traffic status associated with the PON, generates a traffic-shaping factor for the PON based on the traffic status, and applies traffic shaping for each optical network unit (ONU) within the PON using the generated traffic-shaping factor. The traffic-shaping factor determines a portion of a best-effort data rate to be provided to each ONU.
Claims16
A computer-executable method for managing traffic in a network comprising at least a passive optical network (PON), comprising:
- obtaining traffic status associated with the PON, wherein the traffic status comprises one or more of:
- bandwidth utilization and a packet-dropping rate;
- generating a traffic-shaping factor for the PON based on the traffic status;
- and applying traffic shaping for each optical network unit (ONU) within the PON using the generated traffic-shaping factor, wherein the traffic-shaping factor determines a portion of a best-effort data rate to be provided to each ONU, and wherein generating the traffic-shaping factor comprises:
- in response to determining that the bandwidth utilization or the packet-dropping rate exceeds a predetermined threshold, reducing the traffic-shaping factor to reduce the portion of the best-effort data rate to be provided to each ONU.
An apparatus for managing traffic in a network comprising at least a passive optical network (PON), comprising:
- a PON status module configured to obtain traffic status associated with the PON, wherein the traffic status corn rises one or more of:
- bandwidth utilization and a packet-dropping rate;
- a traffic-shaping-factor-generation module configured to generate a traffic-shaping factor for the PON based on the traffic status;
- and
- a traffic-shaping module configured to apply traffic shaping for each optical network unit (ONU) within the PON using the generated traffic-shaping factor, wherein the traffic-shaping factor determines a portion of a best-effort data rate to be provided to each ONU, and wherein, while generating the traffic-shaping factor, the traffic-shaping-factor-generation module is configured to:
- in response to determining that the bandwidth utilization or the packet-dropping rate exceeds a predetermined threshold, reduce the traffic-shaping factor to reduce the portion of the best-effort data rate to be provided to each ONU.
Dependencies are inferred from the claim text.