Transport protocol considerations for session initiation protocol networks

Gurbani, Vijay K.; Jain, R.K.

doi:10.1002/bltj.20006

Cited by 10 publications

(7 citation statements)

References 17 publications

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“…Selection of transport layer protocol is effective for the efficiency of SIP signalling. In , different options for the selection of transport layer protocol were qualitatively studied for SIP. In , the effect of applying different transport layer protocols on the delay of establishing call was studied.…”

Section: Related Workmentioning

confidence: 99%

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Overload mitigation mechanism for VoIP networks: a transport layer approach based on resource management

Montazerolghaem

Seno

Yaghmaee

et al. 2016

Trans. Emerging Tel. Tech.

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Session initiation protocol (SIP) is an application layer signalling protocol for the set‐up, management and termination of multimedia networks such as voice over IP standardised by Internet Engineering Task Force. This protocol has also been recognised by International Telecommunication Union as a main core of next‐generation networks. When this network is under overload for reasons such as improper design, instantaneous swarm, components error and sudden reduction of processing capacity, its efficiency is considerably reduced. Overload occurs when the SIP proxy lacks sufficient CPU and memory resources to process all messages. Because the overload cannot be prevented completely, it is important to equip SIP proxies with an effective overload mitigation mechanism. In this paper, capabilities of transmission control protocol are used in transport layer to reduce SIP proxy overload through the proper allocation of proxy resources. Major activities in this field assume SIP on user datagram protocol, which practically does not result in optimal throughput. To evaluate this approach, an Asterisk open source proxy is used. Our implementation results in the real testbed indicate the efficiency improvement of Asterisk proxy under overload. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Related Workmentioning

confidence: 99%

“…Some factors such as different configurations of servers, size of receptor's memory and the used transport protocol are effective for the efficiency of servers under ordinary load and overload conditions . The efficiency will be reduced considerably without an overload mitigation method .…”

Section: Introductionmentioning

confidence: 99%

Overload mitigation mechanism for VoIP networks: a transport layer approach based on resource management

Montazerolghaem

Seno

Yaghmaee

et al. 2016

Trans. Emerging Tel. Tech.

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“…On the other hand, another important component, which must be considered, is the percentage of sessions missed, which its reduction influence on the Protocol is evident. Generally, with regard to the compatibility in the interoperability, UDP is considered as the standard transmission protocol for SIP, but we should know that the other protocols such as TCP and SCTP are also reliable and applicable [3] (in some cases, the use of connection-oriented protocols are essential, for example, in the circumstances, which the SIP message transmission length is more than MTU [4]). Whereas, according to the standard, all the implementations of SIP must back-up TCP and UDP [5].…”

Section: Related Workmentioning

confidence: 99%

The Overload Reduction in SIP Servers through Exact Regulation of the Retransmission Timer of the Invite Message

Montazerolghaem¹,

Yaghmaee²

2013

JCC

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To initiate voice, image, instant messaging and general multimedia communication, the Session communication must initiate between two participants. SIP (Session initiation protocol) is an application layer control, which task is creating management, and terminating this kind of Sessions. With regard to the independence of SIP from the Transport layer protocols, the SIP messages can be transferred on a variety of Transport layer protocols such as TCP or UDP. The mechanism of Retransmission, which has been embedded in SIP, is able to compensate the missing Packet loss, if needed. The application of this mechanism is when SIP messages are transmitted on an unreliable transmission layer protocol such as UDP. This mechanism, while facing with SIP proxy with overload, causes excessive filling of proxy queue, delays the increase of other contacts and adds the amount of the proxy overload. We in this article, while using UDP, as the Transport layer protocol, by regulating the Invite Retransmission Timer appropriately (T1), have improved the SIP functionality. Therefore, by proposing an Adaptive Timer of Invite message retransmission, we have tried to improve the time of Session initiation and as a result, improving the performance. The performance of the proposed SIP, by the SIP P software in a real network environment has been implemented and evaluated and its accuracy and performance has been demonstrated.

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“…Another study also revealed the pros and cons of these protocols with SIP signaling [4]. Transport Layer Security (TLS) was also investigated in addition to the three stated protocols in [5]. Different variants of TCP, namely, Tahoe, Reno and selective acknowledgement (Sack) had been investigated in the context of SIP signaling [6].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of transport protocols for SIP signaling over IPv6 DVB-RCS satellite networks

Ali

Liang

Sun

et al. 2010

2010 7th International Symposium on Wireless Communication Systems

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With the proliferation of the Internet, voice over IP and multimedia communication become more and more important. One of the protocol that facilitated this development is Session Initiation Protocol (SIP). SIP is a signaling protocol which manages the session establishment and termination. It can be based on UDP or TCP at the transport layer. In this paper, the strengths and weaknesses of SIP over UDP and TCP are analyzed in satellite environment. The performance issues of SIP related to transport layer over the next generation protocol, IPv6, are studied. The experimentation is carried out on the satellite network testbed at Centre for Communication Systems Research (CCSR), University of Surrey. The results show that SIP performance on UDP is better than on TCP. SIP over TCP, requires more retransmissions due to the congestion control and flow control mechanisms of TCP, resulting in larger call setup time and bandwidth consumption.

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Transport protocol considerations for session initiation protocol networks

Abstract: The session initiation protocol (SIP)

Cited by 10 publications

References 17 publications

Overload mitigation mechanism for VoIP networks: a transport layer approach based on resource management

Overload mitigation mechanism for VoIP networks: a transport layer approach based on resource management

The Overload Reduction in SIP Servers through Exact Regulation of the Retransmission Timer of the Invite Message

Evaluation of transport protocols for SIP signaling over IPv6 DVB-RCS satellite networks

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