APPARATUS AND METHOD FOR DYNAMIC LANE OPERATION IN MULTI-LANE BASED ETHERNET

• US 20110221593A1
• Filed: 10/19/2010
• Published: 09/15/2011
• Est. Priority Date: 03/12/2010
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: HAN, Kyeongeun
• Application Number:
  US12/907,487
• Publication Number:
  US 20110221593A1
• Time in Patent Office: Days
• US Class Current: 340/540
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 43/0876 Network utilisation, e.g. volume of load or congestion level
• CPC Class Codes: H04L 47/13 in a LAN segment, e.g. ring or bus
• CPC Class Codes: H04L 47/30 in combination with information about buffer occupancy at either end or at transit nodes
• CPC Class Codes: H04L 47/41 by acting on aggregated flows or links
• CPC Class Codes: H04L 49/90 Buffering arrangements

Abstract

Provided is a method and apparatus for a dynamic lane operation that may determine a number of necessary lanes in a current network state according to an amount of input traffic based on queue information and monitored traffic information for a lane operation in a multi-lane based Ethernet apparatus, and may control the determined number of lanes.

Claims

1. An apparatus for a dynamic lane operation, comprising:

a traffic monitoring unit to generate traffic information by monitoring an amount of traffic input during a predetermined period; and

a lane manager to determine a number of necessary lanes based on the traffic information.

2. The apparatus of claim 1, wherein when the number of necessary lanes is changed, the lane manager transmits information associated with the changed number of necessary lanes to a Reconciliation Sublayer (RS) unit via a Media Access Control (MAC) layer.

3. The apparatus of claim 1, further comprising:

a queue manager to monitor a queue state and to transmit an alarm signal when a queue size being used exceeds a predetermined threshold based on the entire queue size,

wherein when the alarm signal is received, the lane manager transmits, to the traffic monitoring unit, a request signal for verifying a monitoring result with respect to current traffic, and

when the request signal is received, the traffic monitoring unit generates the traffic information based on an amount of traffic input based on a point in time when the request signal is received, and transmits the generated traffic information to the lane manager.

4. The apparatus of claim 1, further comprising:

a queue manager to monitor a queue state and to transmit an alarm signal when a queue size being used exceeds a predetermined threshold based on the entire queue size,

wherein the lane manager determines the number of necessary lanes as a total number of lanes.

5. The apparatus of claim 1, wherein the traffic monitoring unit verifies the amount of traffic using length field information of an input frame.

6. The apparatus of claim 1, wherein the traffic information comprises offered load that is calculated by dividing the amount of traffic input during the predetermined period by a total link transmission capacity.

7. The apparatus of claim 6, wherein the lane manager determines, as the number of necessary lanes, a rounded-up value with respect to a multiplication result of the offered lane and the total number of lanes.

8. The apparatus of claim 1, wherein the traffic information comprises a channel utilization rate for the predetermined period.

9. A method for a dynamic lane operation, comprising:

generating traffic information by monitoring an amount of traffic input during a predetermined period; and

determining a number of necessary lanes based on the traffic information.

10. The method of claim 9, further comprising:

transmitting information associated with a changed number of necessary lanes to a RS via a MAC layer when the number of necessary lanes is changed by determining the number of necessary lanes.

11. The method of claim 9, further comprising:

monitoring a queue state and generating the traffic information based on an amount of traffic input based on a point in time when a queue size being used exceeds a predetermined threshold, when the queue size being used exceeds the predetermined threshold based on the entire queue size.

12. The method of claim 9, further comprising:

monitoring a queue state and determining the number of necessary lanes as a total number of lanes when a queue size being used exceeds a predetermined threshold based on the entire queue size,

13. The method of claim 9, wherein the generating comprises verifying the amount of traffic using length field information of an input frame.

14. The method of claim 9, wherein the traffic information comprises offered load that is calculated by dividing the amount of traffic input during the predetermined period by a total link transmission capacity.

15. The method of claim 14, wherein the determining comprises determining, as the number of necessary lanes, a rounded-up value with respect to a multiplication result of the offered lane and the total number of lanes.

16. The apparatus of claim 9, wherein the traffic information comprises a channel utilization rate for the predetermined period.