Methods, systems, and computer readable media for implementing load balancer traffic policies

Patent metadata

Field	Value
Publication number	US-9979656-B2
Application number	US-201514961376-A
Country	US
Kind code	B2
Filing date	Dec 7, 2015
Priority date	Dec 7, 2015
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

The subject matter herein includes methods, systems, and computer readable media for implementing load balancer traffic policies. An exemplary method may be performed at a session load balancer (SLB) and may include receiving, at the SLB, one or more policy attributes associated with each session controller (SC) in a cluster of SCs. The method may further include configuring, at the SLB, a load balancer traffic policy based on the one or more policy attributes received from each SC in the cluster of SCs, where the load balancer traffic policy includes a distribution rate associated with each SC in the cluster of SCs. The method may further include receiving, at the SLB, a registration request for establishing a session with a SC, determining a destination SC using the load balancer traffic policy, and forwarding the registration request to the destination SC.

First claim

What is claimed is:

1. A method for implementing a load balancer traffic policy, the method comprising:
at a session load balancer (SLB):
receiving, at the SLB, one or more policy attributes associated with each session controller (SC) in a cluster of SCs;
configuring, at the SLB, a load balancer traffic policy based on the one or more policy attributes received from each SC in the cluster of SCs, wherein the load balancer traffic policy includes a distribution rate associated with each SC in the cluster of SCs;
receiving, at the SLB, a registration request for establishing a session with a SC;
determining, at the SLB, a destination SC using the load balancer traffic policy; and
forwarding the registration request to the destination SC;

wherein the distribution rate associated with each SC is a percentage of new registrations to be forwarded to each SC;
wherein the distribution rate is determined without taking into account a central processing unit (CPU) utilization rate associated with each SC in the cluster of SCs.

2. The method of claim 1 , wherein the one or more policy attributes includes a host throttle rate that is associated with each respective SC in the cluster of SCs.

3. The method of claim 1 , wherein the one or more policy attributes includes a maximum signaling rate that is associated with each respective SC in the cluster of SCs.

4. The method of claim 1 , wherein the one or more policy attributes includes a maximum percentage of untrusted traffic that is associated with each respective SC in the cluster of SCs.

5. The method of claim 1 , wherein the one or more policy attributes include a minimum percentage of untrusted traffic that is associated with each respective SC in the cluster of SCs.

6. The method of claim 1 , wherein any SC in the cluster of SCs that reaches or exceeds a predetermined threshold value regarding a central processing unit (CPU) utilization rate has a distribution rate of zero.

7. The method of claim 1 , wherein any SC in the cluster of SCs that reaches a respective maximum endpoint capacity has a distribution rate of zero.

8. The method of claim 1 , wherein the cluster of SCs includes hardware computing platforms and virtual computing platforms.

9. A system for implementing load balancer traffic policies, the system comprising:
a session load balancer (SLB) configured to receive one or more policy attributes associated with each session controller (SC) in a cluster of SCs; and
a policy engine accessed by the SLB, wherein the policy engine is configured with a load balancer traffic policy based on the one or more policy attributes received from each SC in the cluster of SCs, wherein the load balancer traffic policy includes a distribution rate associated with each SC in the cluster of SCs, wherein the policy engine is configured to receive a registration request for establishing a session with a SC, determine a destination SC using the load balancer traffic policy, and forward the registration request to the destination SC;
wherein the distribution rate associated with each SC is a percentage of new registrations to be forwarded to each SC;
wherein the load balancer traffic policy does not take into account a central processing unit (CPU) utilization rate associated with each SC in the cluster of SCs.

10. The system of claim 9 , wherein the one or more policy attributes includes a host throttle rate that is associated with each respective SC in the cluster of SCs.

11. The system of claim 9 , wherein the one or more policy attributes includes a maximum signaling rate that is associated with each respective SC in the cluster of SCs.

12. The system of claim 9 , wherein the one or more policy attributes includes a maximum percentage of untrusted traffic that is associated with each respective SC in the cluster of SCs.

13. The system of claim 9 , wherein the one or more policy attributes include a minimum percentage of untrusted traffic that is associated with each respective SC in the cluster of SCs.

14. The system of claim 9 , wherein any SC in the cluster of SCs that reaches or exceeds a predetermined threshold value regarding a central processing unit (CPU) utilization rate has a distribution rate of zero.

15. The system of claim 9 , wherein any SC in the cluster of SCs that reaches a respective maximum endpoint capacity has a distribution rate of zero.

16. The system of claim 9 , wherein the cluster of SCs includes hardware computing platforms and virtual computing platforms.

17. A non-transitory computer readable medium having stored thereon executable instructions that when executed by a processor of a computer control the computer to perform steps comprising:
receiving, at a session load balancer (SLB), one or more policy attributes associated with each session controller (SC) in a cluster of SCs;
configuring, at the SLB, a load balancer traffic policy based on the one or more policy attributes received from each SC in the cluster of SCs, wherein the load balancer traffic policy specifies a distribution rate associated with each SC in the cluster of SCs;
receiving, at the SLB, a registration request for establishing a session with a SC;
determining, at the SLB, a destination SC using the load balancer traffic policy; and
forwarding the registration request to the destination SC;
wherein the distribution rate associated with each SC is a percentage of new registrations to be forwarded to each SC;
wherein the distribution rate is determined without taking into account a central processing unit (CPU) utilization rate associated with each SC in the cluster of SCs.

Assignees

• Oracle Int Corp

Inventors

• Peterson Russell Bart
• Commerford Peter
• Taylor Paul David
• Thompson David Scott

Classifications

• H04L47/125 Primary

  by balancing the load, e.g. traffic engineering · CPC title

• H04L67/142

  Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms · CPC title

• H04L43/16

  Threshold monitoring · CPC title

• H04L67/1025

  Dynamic adaptation of the criteria on which the server selection is based · CPC title

• H04L67/1031

  Controlling of the operation of servers by a load balancer, e.g. adding or removing servers that serve requests · CPC title