On SIP performance

Cortés, Mauricio; Ensor, J. Robert; Esteban, Jairo

doi:10.1002/bltj.20048

Cited by 72 publications

(40 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1. Our measurement confirm the results of [2]: 25 % of the time is needed for parsing. The main share of 50 % is needed for the stateful forwarding of SIP request and 15 % are needed for the stateless forwarding of SIP replies.…”

Section: Internal and External Processing Timessupporting

confidence: 89%

“…Still, performance studies and capacity planning require at least some estimates. A detailed study on SIP performance was published in [2]. The paper compares different proxy implementations that were specifically programmed for this study.…”

Section: Related Workmentioning

confidence: 99%

“…SIP is a text-based protocol. Therefore, SIP entities have to parse text messages, which is reported in literature to consume significant amounts of processing time [2]. This has also fostered proposals to use alternative encoding formats for session signaling; a recent example is, e. g., [3].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Measurement of the SIP Parsing Performance in the SIP Express Router

Wanke

Scharf

Kiesel

et al. 2007

Dependable and Adaptable Networks and Services

View full text Add to dashboard Cite

Abstract. Future telephony and multimedia systems will use the Session Initiation Protocol (SIP) for signaling purposes. SIP is a text-based protocol that imposes challenges for an efficient message processing. The ability of SIP entities to process SIP messages quickly is crucial for the performance of these networks, which often have strict timing requirements, e. g., to keep the call setup delays small. This paper studies the performance of SIP message processing in SIP proxies, focusing mainly on the impact of message parsing. We perform a detailed delay analysis for the widely used SIP Express Router (SER). Our measurements show that message parsing actually contributes significantly to a SIP proxy's processing efforts, and therefore confirm other existing studies. However, our results also show that the overall delay in high-performance SIP proxies is stronger affected by other factors, in particular the operating system.

show abstract

Section: Internal and External Processing Timessupporting

confidence: 89%

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Measurement of the SIP Parsing Performance in the SIP Express Router

Wanke

Scharf

Kiesel

et al. 2007

Dependable and Adaptable Networks and Services

View full text Add to dashboard Cite

show abstract

“…These attributes make it fairly easy to attack a SIP server by sending malformed messages to it. Cortes and his co-authors [9] as well as Ehlert [11] established that a SIP server utilizes 25 percent of processing time for parsing. The SIP server will spend resources trying to parse a malformed message, and if thousands of such messages arrive simultaneously, a denial of service attack can effectively be mounted using nothing more than an array of smart SIP fuzzing systems [6] to generate a flood of malformed messages.…”

Section: Layer 5 (Sip) Attacksmentioning

confidence: 99%

Session Initiation Protocol firewall for the IP Multimedia Subsystem core

Bessis¹,

Gurbani²,

Rana³

2011

Bell Labs Tech. J.

View full text Add to dashboard Cite

As the deployment of Session Initiation Protocol (SIP) accelerates of a firewall in protecting the IP Multimedia Subsystem (IMS) or SIP-based core network, distinguish it from an SBC, and characterize the specific threats to SIP messages at the L2 (data link layer), L3 (network layer), L4 (transport layer), and L5 (session layer).We show how a SIP firewall can thwart these attacks and we propose an implementation based on a simplified, but fully hardware accelerated SIP proxy as a front end SIP firewall. Such a system naturally blocks most attacks and implements many defense mechanisms. © 2011 Alcatel-Lucent. make sense of the SIP message and qualify it as normal or anomalous. Clearly, burdening a conventional firewall with these capabilities while also expecting that it will perform its canonical firewall duties is a difficult undertaking. In order to deal with SIP-specific attacks, a SIP firewall must have enough knowledge of SIP grammar to allow some parsing, and enough cognizance of SIP state to be state-aware in order to stop the large variety of attacks that are possible.

show abstract

“…• By studying the code, the performance experts suggested a list of changes that would optimize the implementation [4];…”

Section: Establishing Open Source Development Projectmentioning

confidence: 99%

A case study of open source tools and practices in a commercial setting

Gurbani¹,

Garvert²,

Herbsleb³

2005

Proceedings of the Fifth Workshop on Open Source Software Engineering - 5-Wosse

View full text Add to dashboard Cite

Commercially, many in the industry are using products based on Open Source. What have been missing are studies on if the commercial industry benefits from developing software following the open source development model. We present a case study that examines this issue by applying the concepts of the open source software development methodology to creating industrial-strength software. We conclude with lessons learned and open research questions.

show abstract

On SIP performance

Cited by 72 publications

References 8 publications

Measurement of the SIP Parsing Performance in the SIP Express Router

Measurement of the SIP Parsing Performance in the SIP Express Router

Session Initiation Protocol firewall for the IP Multimedia Subsystem core

A case study of open source tools and practices in a commercial setting

Contact Info

Product

Resources

About