Analysis of Scientific Paper

OpenSIP : Toward Software-Defined SIP Networking

Wai Yan Kyaw

211AEM007

Agenda

• Traditional SIP Networks

• Problems of legacy SIP networks

• OpenSIP 

• Contributions

• Software Defined Networking

• Partial SDN-based Architecture

• Full SDN-based Architecture

• Software-Defined NFV-Based Architecture

• Implementation and Performance Evaluation

• Conclusions

Session Initiatoin Protocol (SIP)

SIP is extensively deployed for significantly growing session-oriented applications on the Internet, such as Internet telephony or voice over IP.

Traditional SIP Netowork

With the incresing use of SIP, 

• Ineffective routing

• un-optimized management of proxy resources

• overload conditions

OpenSIP

The gold of the current study is to separate the main functionalities of the SIP networks into a software logically centralized controller. 

Contributions

This paper intruduces three approaches:

First approach:Partial SDN-Based Architecture (OpenSIP_Partial)

Second approach:Partial SDN-Based Architecture (OpenSIP_Full)

Third approach:Software-Defined NFV-Based Architecture(OpenSIP_NFV+)

OpenSIP_Partial

OpenSIP_Full

OpenSIP_NFV+

(a) Traditional SIP network
(b) OpenSIP_Partial

(c) OpenSIP_Full
(d) OpenSIP_NFV+

Partial SDN-based Architecture

Full SDN-based Architecture

Software-Defined NFV-Based Architecture

Implementation and Performance Evaluation

For OpenSIP_Partial

• Scenario_1: Background traffic of each proxy is equal

• Scenario_2:Backgound traffic of P1 is as double as P2.

Implementation and Performance Evaluation

For OpenSIP_Full

Basic SIP Flow

Advanced SIP Flow

Simulation results

Conclusions

The simulation results confirmed that 

• high throughput, 

• low response time

• resource efficiency. 

• the scalability of the proposed controllers 

• the proper routing of call requests

Thank You for your attention!