com.net2plan.libraries

Class TrafficComputationEngine

Object

com.net2plan.libraries.TrafficComputationEngine

public class TrafficComputationEngine
extends Object

Class implementing different traffic metrics.

Since:

0.3.0

Author:

Pablo Pavon-Marino, Jose-Luis Izquierdo-Zaragoza

Method Summary

Methods

Modifier and Type	Method and Description
static double	getPathBottleneckCapacity(NetPlan netPlan, List<Long> path) Returns the bottleneck (lowest) capacity among the set of traversed links and protection segments.
static double	getPathBottleneckCapacity(NetPlan netPlan, long layerId, List<Long> path) Returns the bottleneck (lowest) capacity among the set of traversed links and protection segments.
static double	getRouteAverageLength(NetPlan netPlan, long layerId, Map<Long,Double> linkCostMap) Obtains the average route length among the current routes according to certain link cost metric.
static double	getRouteAverageLength(NetPlan netPlan, Map<Long,Double> linkCostMap) Obtains the average route length among the current routes according to certain link cost metric.
static Triple<Double,Double,Double>	getTrafficProtectionDegree(NetPlan netPlan) Returns the statistics for protection degree carried traffic.
static Triple<Double,Double,Double>	getTrafficProtectionDegree(NetPlan netPlan, long layerId) Returns the statistics for protection degree carried traffic.

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getPathBottleneckCapacity

public static double getPathBottleneckCapacity(NetPlan netPlan,
                               List<Long> path)

Returns the bottleneck (lowest) capacity among the set of traversed links and protection segments. This method takes into account multiple passes through the same link or protection segment.

Parameters:

netPlan - Current network design

path - Sequence of links and protection segments (not checked for continuity)

Returns:

Bottleneck capacity

Since:

0.3.0

getPathBottleneckCapacity

public static double getPathBottleneckCapacity(NetPlan netPlan,
                               long layerId,
                               List<Long> path)

Returns the bottleneck (lowest) capacity among the set of traversed links and protection segments. This method takes into account multiple passes through the same link or protection segment.

Parameters:

netPlan - Current network design

layerId - Layer identifier

path - Sequence of links and protection segments (not checked for continuity)

Returns:

Bottleneck capacity

Since:

0.3.0

getRouteAverageLength

public static double getRouteAverageLength(NetPlan netPlan,
                           long layerId,
                           Map<Long,Double> linkCostMap)

Obtains the average route length among the current routes according to certain link cost metric. Route lengths are weighted by their carried traffic.

Parameters:

netPlan - Current network design

layerId - Layer identifier

linkCostMap - Cost metric per link

Returns:

Average route length

Since:

0.2.2

getRouteAverageLength

public static double getRouteAverageLength(NetPlan netPlan,
                           Map<Long,Double> linkCostMap)

Obtains the average route length among the current routes according to certain link cost metric. Route lengths are weighted by their carried traffic.

Parameters:

netPlan - Current network design

linkCostMap - Cost metric per link

Returns:

Average route length

Since:

0.3.0

getTrafficProtectionDegree

public static Triple<Double,Double,Double> getTrafficProtectionDegree(NetPlan netPlan)

Returns the statistics for protection degree carried traffic. Returned values are the following:

• Unprotected: Percentage of carried traffic which is not backed up by protection segments
• Complete and dedicated protection: Percentage of carried traffic which has one or more dedicated protection segments covering the whole route with enough bandwidth
• Partial and/or shared protection: For cases not covered by the above definitions

Parameters:

netPlan - Current network design

Returns:

Traffic protection degree

Since:

0.2.2

getTrafficProtectionDegree

public static Triple<Double,Double,Double> getTrafficProtectionDegree(NetPlan netPlan,
                                                      long layerId)

Returns the statistics for protection degree carried traffic. Returned values are the following:

• Unprotected: Percentage of carried traffic which is not backed up by protection segments
• Complete and dedicated protection: Percentage of carried traffic which has one or more dedicated protection segments covering the whole route with enough bandwidth
• Partial and/or shared protection: For cases not covered by the above definitions

Parameters:

netPlan - Current network design

layerId - Layer identifier

Returns:

Traffic protection degree

Since:

0.3.0