Dynamic packet traffic performance adjustment systems and methods

• US 9,781,048 B2
• Filed: 02/16/2015
• Issued: 10/03/2017
• Est. Priority Date: 12/21/2012
• Status: Active Grant

• Current Assignee: Ciena Corporation
• Original Assignee: Ciena Corporation
• Inventors: Holness, Marc, Martin, David Wright
• Primary Examiner(s): Elliott, IV, Benjamin H
• Application Number:
  US14/622,989
• Publication Number:
  US 20160036714A1
• Time in Patent Office: 960 Days
• CPC Class Codes: H04L 45/24 Multipath
• CPC Class Codes: H04L 47/20 Traffic policing
• CPC Class Codes: H04L 47/365 Dynamic adaptation of the packet size
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority

Abstract

A method, a network, and a network element use dynamic packet traffic performance adjustment techniques. In an exemplary embodiment, the dynamic resizing techniques utilize different packet connections providing connectivity to same sites between which bandwidth resizing is needed. Each of the packet connections has a separate and independent bandwidth profile that governs an amount of traffic that is dispatched over each packet connection. A network element sourcing traffic into the packet connections uses bridge functionality that dispatches client traffic onto all of the packet connections or an individual packet connection. This effectively means that the transport network bandwidth utilization is only consumed by a single packet connection, i.e., the packet connection-A (even through there are multiple configured). The network element sinking the traffic selects from a single active packet connection.

Claims

1. A method for traffic performance adjustment in a source network element using a dynamic resizing technique, the method comprising:

operating a first connection with a first bandwidth profile and a second connection with a second bandwidth profile with a sink network element, wherein the first connection and the second connection are each between the source network element and the sink network element; and

sourcing traffic to one or both of the first connection and the second connection to the sink network element, based on a desired bandwidth amount, wherein the sink network element sinks the traffic from the first connection and the second connection based on the desired bandwidth amount and associated settings of the first bandwidth profile and the second bandwidth profile that are set based on dynamic resizing required.

2. The method of claim 1, wherein the sourcing comprises:

sending the traffic to both the first connection and the second connection, with traffic only flowing on one of the first connection and the second connection based on the first bandwidth profile and the second bandwidth profile,

wherein the sink network element is configured to select from one of the first connection and the second connection accordingly.

3. The method of claim 1, wherein the sourcing comprises:

bridging the traffic to one of the first connection and the second connection,

wherein the sink network element is configured to merge the traffic from both the first connection and the second connection.

4. The method of claim 1, wherein, in the dynamic resizing technique, one of the first bandwidth profile and the second bandwidth profile has a value set to the desired bandwidth amount and another of the first bandwidth profile and the second bandwidth profile has a value set to zero.

5. The method of claim 1, wherein the first connection and the second connection are any of Multiprotocol Label Switching (MPLS)-based, MPLS-Transport Profile (MPLS-TP)-based, Virtual Private Local Area Network Service (VPLS)-based, and Internet Protocol (IP)-based.

6. The method of claim 1, wherein the first connection and the second connection are Ethernet Virtual Connections (EVCs).

7. The method of claim 1, wherein the first bandwidth profile and the second bandwidth profile include <

CIR, CBS, EIR, EBS, CF, CM>

where CIR is Committed Information Rate, CBS is Committed Burst Size, EIR is Excess Information Rate, EBS is Excess Burst Size, CF is Coupling Flag, and CM is Color Mode.

8. A method for traffic performance adjustment in a sink network element using a dynamic resizing technique, the method comprising:

operating a first connection with a first bandwidth profile and a second connection with a second bandwidth profile with a source network element, wherein the first connection and the second connection are each between the source network element and the sink network element; and

sinking traffic from one or both of the first connection and the second connection from the source network element, based on a desired bandwidth amount, wherein the source network element sources the traffic to one or both of the first connection and the second connection based on the desired bandwidth amount and associated settings of the first bandwidth profile and the second bandwidth profile that are set based on dynamic resizing required.

9. The method of claim 8, wherein the sinking is from one of the first connection and the second connection based on the first bandwidth profile and the second bandwidth profile,

wherein the source network element is configured to source traffic on one of the first connection and the second connection based on the first bandwidth profile and the second bandwidth profile.

10. The method of claim 8, wherein the sinking comprises:

merging the traffic from both the first connection and the second connection,

wherein the source network element is configured to bridge the traffic to one of the first connection and the second connection.

11. The method of claim 8, wherein, in the dynamic resizing technique, one of the first bandwidth profile and the second bandwidth profile has a value set to the desired bandwidth amount and another of the first bandwidth profile and the second bandwidth profile has a value set to zero.

12. The method of claim 8, wherein the first connection and the second connection are any of Multiprotocol Label Switching (MPLS)-based, MPLS-Transport Profile (MPLS-TP)-based, Virtual Private Local Area Network Service (VPLS)-based, and Internet Protocol (IP)-based.

13. The method of claim 8, wherein the first connection and the second connection are Ethernet Virtual Connections (EVCs).

14. The method of claim 8, wherein the first bandwidth profile and the second bandwidth profile include <

CIR, CBS, EIR, EBS, CF, CM>

where CIR is Committed Information Rate, CBS is Committed Burst Size, EIR is Excess Information Rate, EBS is Excess Burst Size, CF is Coupling Flag, and CM is Color Mode.

16. The method of claim 8, wherein, in the dynamic resizing technique, one of the first bandwidth profile and the second bandwidth profile has a value set to the desired bandwidth amount and another of the first bandwidth profile and the second bandwidth profile has a value set to zero.

15. A network element configured to perform dynamic traffic performance adjustment using a dynamic resizing technique, the network element comprising:

at least one port with a switching fabric communicatively coupled thereto;

wherein the network element is configured to

operate a first connection with a first bandwidth profile and a second connection with a second bandwidth profile with another network element, via the at least one port, wherein the first connection and the second connection are each between the source network element and the sink network element,

if the network element is a source network element, source traffic to one or both of the first connection and the second connection to the another network element, based on a desired bandwidth amount, wherein the another network element sinks the traffic from the first connection and the second connection based on the desired bandwidth amount and associated settings of the first bandwidth profile and the second bandwidth profile that are set based on dynamic resizing required, and

if the network element is a sink network element, sink traffic from one or both of the first connection and the second connection from the another network element, based on the desired bandwidth amount, wherein the another network element sources the traffic to one or both of the first connection and the second connection based on the desired bandwidth amount and associated settings of the first bandwidth profile and the second bandwidth profile that are set based on the dynamic resizing required.

17. The network element of claim 15, wherein the first connection and the second connection are any of Multiprotocol Label Switching (MPLS)-based, MPLS-Transport Profile (MPLS-TP)-based, Virtual Private Local Area Network Service (VPLS)-based, and Internet Protocol (IP)-based.

18. The network element of claim 15, wherein the first connection and the second connection are Ethernet Virtual Connections (EVCs).

19. The network element of claim 15, wherein the first bandwidth profile and the second bandwidth profile include <

CIR, CBS, EIR, EBS, CF, CM>

where CIR is Committed Information Rate, CBS is Committed Burst Size, EIR is Excess Information Rate, EBS is Excess Burst Size, CF is Coupling Flag, and CM is Color Mode.