Granted Patent B2

US 7,362,708 · App. 10/265,667 · Granted Apr 22, 2008

Abstract

Claims (48)

1. A traffic engineering module of a telecommunication device in a telecommunication network, said traffic engineering means being enabled to determine a traffic distribution being a traffic share (TSi) for each path (Pi) of a set of paths (P 1 , P 2 , P 3 ) between a source and a destination of said telecommunication network, said traffic distribution being adjusted on at least one of the following events: when a timer expires or when a load-losses information related to critically-loaded link has been received, where said traffic engineering module comprising:

first determining means enabled to determine for each said path (Pi) an equivalent load (EquivLoad path i ) as a function of received load information and received losses information of said path (Pi), and to provide thereby a set of equivalent loads ((EquivLoad path 1 ), (EquivLoad path 2 ); . . . ; (EquivLoad path n ));

second determining means coupled to said first determining means being enabled to determine a maximum equivalent load (MaxEquivLoad) out of said set of equivalent loads ((EquivLoad path 1 ), (EquivLoad path 2 ); . . . ; (EquivLoad path n )); and

third determining means enabled to determine for each said path (Pi) an increase in traffic share (Tsilnc) proportional to a difference between said maximum equivalent load (MaxEquivLoad) and said equivalent load (EquivLoad path i ) of said path (Pi).

2. Traffic engineering means according to claim 1 , wherein the third determining means ( 80 ) enabled to determine for each said path (Pi) an increase in traffic share (Tsilnc) also inversely proportional to a current traffic share (Tsi) of said path (Pi).

3. Traffic engineering means according to claim 1 , wherein the third determining means ( 80 ) enabled to determine for each said path (Pi) an increase in traffic share (Tsilnc) is calculated according to the formula

Inc_TS

path

=

0.5

*

MaxEquivLoad

-

EquivLoad

path

MaxEquivLoad

+

EquivLoad

path

4. A method to generate a traffic distribution in a telecommunication network, the method comprising:

determining the traffic distribution being a traffic share for each path (Pi) of a set of paths (P 1 , P 2 , P 3 ) between a source (S) and a destination (D 1 , D 2 ) of said telecommunication network, said traffic distribution being adjusted on at least one of the following events: when a timer expires or when a load-losses information related to critically-loaded link has been received;

determining for each said path (Pi) an equivalent load (EquivLoad path i ) as a function of received load information and received losses information of said path (Pi) and to provide thereby a set of equivalent loads ((EquivLoad path 1 ), (EquivLoad path2 ); . . . ; (EquivLoad path n ));

determining a maximum equivalent load (MaxEquivLoad) out of said set of equivalent loads ((EquivLoad path 1 ), (EquivLoad path 2 ); . . . ; (EquivLoad path n )); and

determining for each said path (Pi) an increase in traffic share (Tsilnc) proportional to a difference between said maximum equivalent load (MaxEquivLoad) and said equivalent load (EquivLoad path 1) of said path (Pi).

5. Method according to claim 4 , where the determining for each said path (Pi) an increase in traffic share (Tsilnc) is also inversely proportional to a current traffic share (Tsi of said path (Pi)).

6. Method according to claim 4 , where the determining for each said path (Pi) an increase in traffic share (Tsilnc) is calculated according to the formula:

Inc_TS

path

=

0.5

*

MaxEquivLoad

-

EquivLoad

path

MaxEquivLoad

+

EquivLoad

path

7. A traffic engineering module of a telecommunication device in a telecommunication network for determining a traffic distribution, the traffic engineering module comprising:

first determining sub-module, which determines for each path for traffic between a source and a destination, an equivalent load as a function of received load information and received losses information of respective path, and-which provides a set of equivalent loads;

second determining sub-module, which determines a maximum equivalent load out of said set of equivalent loads; and

third determining sub-module, which determines for said each path an increase in traffic share proportional to a difference between said maximum equivalent load and said equivalent load of said respective path.

8. A method to generate a traffic distribution in a telecommunication network, the method comprising:

determining the traffic distribution being a traffic share for each path of a set of paths between a source and a destination of said telecommunication network, the traffic distribution being adjusted when a timer expires or when a load-losses information related to critically-loaded link has been received;

determining for each said path an equivalent load as a function of received load information and received losses information of said path and to provide thereby a set of equivalent loads;

determining a maximum equivalent load out of said set of equivalent loads; and

determining for each said path an increase in traffic share proportional to a difference between said maximum equivalent load and said equivalent load of said path.

Assignments (9)