Practical active network services within content-aware gateways

Subramanian, S.; Wang, P.; Durairaj, R.; Rasimas, J.; Travostino, F.; Lavian, T.; Hoang, Doan B.

doi:10.1109/dance.2002.1003506

Cited by 8 publications

(4 citation statements)

References 27 publications

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“…In this model, the content author provides the transcoding policies and controls the adaptation and this is done in an offline manner (as opposed to on request in most proxy based transcoding systems). [31] presents a Content-aware Active Gateway (CAG) architecture allowing for on the fly content adaptation. They rely on the ability to filter specific types of traffic by identifying pat-terns in the header or payload of packets.…”

Section: Content Adaptationmentioning

confidence: 99%

Content and Context Aware Networking Using Semantic Tagging

Kodeswaran

Joshi

2006

22nd International Conference on Data Engineering Workshops (ICDEW'06)

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Today's model of networking primarily concentrates intelligence at the end hosts with the network itself offering a simple"best-effort","data agnostic" communication medium. However, this paradigm has proven to be insufficient to meet todays needs considering the diversity of applications and devices that are networked. To offer value added services to these end users and applications, more and more intelligence needs to be migrated away from the edges and into the network in a controlled and tractable manner. In this paper, we present our approach of utilizing semantic data tagging to provide content level information for data streams flowing through a network. A policy based management mechanism is utilized within the network fabric allowing routers to reason over the content and make intelligent decisions regarding the handling of data packets. Service differentiation, in-network content adaptation, traffic monitoring and control etc. are some of the new services that can now be offered by the network in a generic and flexible manner. By deploying our proposed architecture, a network need no longer be viewed as a simple data transport medium but rather as a policy-controlled intelligent packet/stream processor that can offer specialized handling based on application needs.

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Section: Content Adaptationmentioning

confidence: 99%

Content and Context Aware Networking Using Semantic Tagging

Kodeswaran

Joshi

2006

22nd International Conference on Data Engineering Workshops (ICDEW'06)

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“…Most of current work on the active networks focuses on designing a platform within the single node to execute the code-embedded packet [8,9]. Some work also studied issues in providing active services by designing application-specific support services such as, video conference transcoding proxy [10], content-aware gateway [11], NAT [12], customized many to one communication [13], customized multicast communication [14], etc. In this paper we mainly focus on efficiently integrating services, transparently providing services and intelligently adapting to changing network environments for applications in a distributed fashion.…”

Section: Background and Related Workmentioning

confidence: 99%

Distributed policy processing in active‐service based infrastructures

Chellappan

Xuan

et al. 2006

Int J Communication

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SUMMARYMore and more applications in the Internet are requiring an intelligent service infrastructure to provide customized services. In this paper, we present an infrastructure, which can transparently and effectively provide customized active-services to end users and dynamically adapt to changing customized policies in large distributed heterogeneous environments. The infrastructure consists of two components: the policy agent and middleware box. Particularly, our technologies include: (1) Generic active-service based infrastructure, where the policy agent can integrate policies requested by applications, and middleware boxes can transparently execute services and (2) Distributed policy processing in the middleware box. We study two policy partitioning schemes to achieve conflict-free policies for distributed policy processing and guarantee the correctness of the policy execution. We conduct extensive performance evaluations on different schemes proposed. Our experimental results demonstrate that our policy partitioning schemes can effectively generate partition-capable and conflict-free policy sets. The evaluation results also show that distributed policy processing can achieve over 70% increase in performance/price ratio with proper assignment of the policy distribution degree compared to a purely centralized approach.

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“…However, as seen in the ORE ANTS application, or data-plane services, rely largely on the performance of the control CPU. We are exploring a new hardware architecture [25] in which network services can reside in a new plane, the computing plane. Attached to the commercial network devices such as Alteon [24], this computing plane is being implemented with high performance computing technology such as FPGA, and it will allow active manipulation of an increased number as well as increased granularity of content flows.…”

Section: Discussionmentioning

confidence: 99%

Enabling active flow manipulation in silicon-based network forwarding engines

Lavian

Wang²,

Travostino³

et al.

Proceedings DARPA Active Networks Conference and Exposition

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A significant challenge arising from today's increasing Internet traffic is the ability to flexibly incorporate intelligent control in high performance commercial network devices. This paper tackles this challenge by introducing the Active Flow Manipulation (AFM) mechanism to enhance traffic control intelligence of network devices through programmability. With AFM, customer network services can exercise active network control by identifying distinctive flows and applying specified actions to alter network behavior in real-time. These services are dynamically loaded through Openet by the CPU-based control unit of a network node and are closely coupled with its silicon-based forwarding engines, without negatively impacting forwarding performance. AFM is exposed as a key enabling technology of the programmable networking platform Openet. The effectiveness of our approach is demonstrated by four active network services on commercial network nodes.

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Practical active network services within content-aware gateways

Cited by 8 publications

References 27 publications

Content and Context Aware Networking Using Semantic Tagging

Content and Context Aware Networking Using Semantic Tagging

Distributed policy processing in active‐service based infrastructures

Enabling active flow manipulation in silicon-based network forwarding engines

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