J.M. Smith, D.J. Farber, C.A. Gunter, S.M. Nettles, D.C. Feldmeier, and W.D. Sincoskie, "SwitchWare: Accelerating Network Evolution," White Paper, 26 June 1996. Available at http://www.cis.upenn.edu/~jms/white-paper.ps  Home/Search   Document Not in Database   Summary   Related Articles   Check

....Links Control Execution Active Network Node . Execution Environment N 5 active networking approach. Additional motivation for this work and ongoing projects can be found in [10] Two areas of current research are (1) designing execution environments for active network nodes ( 11] [12], 6] and (2) extracting application specific functionality to be integrated into the network layer, such as, application specific packet filtering functions and application specific packet routing ( 13] 14] 15] An architectural framework for active networks is being developed by the AN ....

J. Smith, D. Fraber, C. Gunter, S. Nettles, D. Feldmeier, W. Sincoskie, "SwitchWare: Accelerating Network Evolution," Technical Report MC-CIS-96-38, CIS Department, University of Pennsylvania, May 1996.

....to our implementation. Both implementations use the Java virtual machine as the execution environment for the Active Nodes and transfer SmartPackets (which they call capsules) between Active Nodes using UDP. There are also some other efforts investigating Active Networks. The SwitchWare project [19], which is a joint project between the University of Pennsylvania and Bellcore Communications, aims at developing a software switch to which programs may be downloaded to modify link behavior. Researchers at the University of Pennsylvania have also developed a new language called PLAN [20] which ....

J. Smith, D. J. Farber, C. A. Hunter, S. M. Nettles, D. C. Feldmeier, and W. D. Sincoskie. SwitchWare: Accelerating Network Evolution, Tech. Report MS-CIS-96-38, CIS Dept, Univ. of Pennsylvania, May 1996.

....weak consistency protocols (e.g. 14, 24, 7] as well as other optimizations (e.g. 15, 2, 3, 27, 30, 8] Work has also been done on decreasing the overhead of the transmission protocol used to send the required consistency maintenance messages [34, 33, 10] 2.3. Active Networks Active networks[13, 29, 32, 36] allow customized (possibly application specific) programs to execute in the network. By allowing the execution of user defined programs, the function of the network is no longer restricted to packet delivery alone and this creates opportunities for optimizations to many distributed applications. ....

J. Smith. Switchware: Accelerating Network Evolution. Technical Report MS-CIS-96-38, University of Pennsylvania, CIS Department, 1996.

....Condor and combines them with other concepts to define a grid consisting of dynamically created, multi level clusters built, initially, from desktop machines and departmental servers. The focus of our work, however, is not limited to high throughput computing. 2. 3 Active Networks Active networks [10, 29, 32, 34, 21, 22] are a novel approach to network architecture in which customized (possibly application specific) programs can be executed within the network itself. By introducing the ability to execute user defined programs, the network is no longer restricted to packet delivery alone and this creates ....

J. Smith. Switchware: Accelerating Network Evolution. Technical Report MSCIS -96-38, University of Pennsylvania, CIS Department, 1996.

....the principle that transport networks should carry user data opaquely. There are two approaches to active networks. The evolutionary path, called the programmable switch approach, keeps the existing packet format and provides a mechanism for downloading programs to dynamically programmable nodes [61, 77]. The revolutionary path, also known as the capsule approach, considers packets as miniature programs that are encapsulated in transmission frames, and executed at each node along their path [67] Flexible and robust management is very natural with active networks, specially in the areas of ....

J.M. Smith, D.J. Farber, C.A. Gunter, S.M. Nettles, D.C. Feldmeier and W.D. Sincoskie. SwitchWare: Accelerating Network Evolution. Technical Report MS-CIS-96-38, CIS Dept, University of Pennsylvania, PA, USA, 1996.

....and then programmed separately for each different router platform. Our approach, with its use of a universally defined bytecode stream for installing new algorithms, will be allow new algorithms to be defined and installed immediately across all platforms. The Switchware work by Jon Smith et al. [Smith96] at University of Pennsylvania and Bellcore embraces the integrated approach to active networks. They plan to create a programmable switching node and develop several new services using it. They recognize that their switching node, to be useful, must include conventional IP datagram forwarding, ....

....node and develop several new services using it. They recognize that their switching node, to be useful, must include conventional IP datagram forwarding, reserving the active networking capability for applications that are highly speculative, too forward looking, or simply not well understood [Smith96]. Of their intended applications, only network management is concerned with network control and is therefore comparable to the our work on active signaling. They intend to develop a new type safe programming language for Switchware, and to work on the fundamental mechanistic issues of rapid ....

[Article contains additional citation context not shown here]

Smith, J., Farber, D., Gunter, C, Nettles, S., Feldmeier, D., and W. D. Sincoskie, Switchware: Accelerating Network Evolution (White Paper). Technical Report MS-CIS-96-38, CIS Dept., Univ. of Pennsylvania, June 1996. Available from: http://www.cis.upenn.edu/ jms/white-paper.ps

....is to discuss a range of Active Networking architectures and their impact on and support of mobile computing. 3. 1 Programmable Switches As the first step, user specific customization at the network nodes is achieved by the deployment of programmable switches, as was done in the SoftSwitch [4]. The key idea is to make the basic network element, the switch, programmable so that the need for formal standardization is eliminated and to enable rapid deployment of new standards. The switch software may be modified by downloaded specialized programs over the management plane as messages. ....

J. M. Smith, D. J. Farber, C. A. Hunter, S. M. Nettles, D. C. Feldmeier, and W. D. Sincoskie. SwitchWare: Accelerating Network Evolution (White Paper), University of Pennsylvania and Bellcore Communications, 1996.

....The networking community is currently putting substantial efforts into investigating the active networking approach. Additional motivation for this work and ongoing projects can be found in [2] Two areas of current research are (1) designing Execution Environments for active network nodes ( 6] [7], 4] and (2) extracting applicationspecific functionality to be integrated into the network layer, such as, application specific packet filtering functions and application specific packet routing ( 8] 9] 10] An architectural framework for active networks is being developed by the AN ....

J. Smith, D. Farber, C. Gunter, S. Nettles, D. Feldmeier, W. Sincoskie, "SwitchWare: Accelerating Network Evolution," Technical Report MC-CIS-96-38, CIS Department, University of Pennsylvania, May 1996.

....computations on packet contents, and possibly modify them. Two approaches to active network technology are possible. The evolutionary path, called the programmable switch approach, keeps the existing packet format and provides a mechanism for downloading programs to dynamically programmable nodes [18, 21]. The revolutionary path, also known as the capsule approach, considers packets as miniature programs that are encapsulated in transmission frames, and executed at each node along their path [19] Tennenhouse s approach in active networks is similar to Morgenstern s approach in active databases: ....

J.M. Smith, D.J. Farber et al. SwitchWare: Accelerating Network Evolution. Technical Report MS-CIS-96-38, CIS Dept, University of Pennsylvania, USA, 1996.

....The networking community is currently putting substantial efforts into investigating the active networking approach. Additional motivation for this work and ongoing projects can be found in [12] Two areas of current research are (1) designing execution environments for active network nodes ( 13] [14], 7] and (2) extracting application specific functionality to be integrated into the network layer, such as, application specific packet filtering functions and application specific packet routing ( 15] 16] 17] An architectural framework for active networks is being developed by the AN ....

J. Smith, D. Fraber, C. Gunter, S. Nettles, D. Feldmeier, W. Sincoskie, "SwitchWare: Accelerating Network Evolution," Technical Report MC-CIS-96-38, CIS Department, University of Pennsylvania, May 1996.

....Active networks are based on the mobile code paradigm. Two approaches to active network technology are possible. The evolutionary path called the programmable switch approach keeps the existing packet format and provides a mechanism for the downloading of programs to dynamically programmable nodes [57, 69]. The revolutionary path, also known as the capsule approach, considers packets as miniature programs that are encapsulated in transmission frames and executed at each node along their path [62] Tennenhouse s approach in active networks is similar to Morgenstern s approach in active databases ....

J.M. Smith, D.J. Farber, C.A. Gunter, S.M. Nettles, D.C. Feldmeier and W.D. Sincoskie. SwitchWare : Accelerating Network Evolution. Technical Report MS-CIS-96-38, CIS Dept, University of Pennsylvania, USA, 1996.

....heavily on many of the ideas and application ideas developed through the ANTS work. A group at U. Penn and Bell Communications has been working on developing a programmable switch and on developing Caml and SML based programming language technologies that may be used in future active networks [25]. They have implemented and tested an active bridge[2] written in Caml that runs in user space under Linux. However, their performance measurements are substantially slower that the results measured with the PAN system. The University of Arizona s Liquid Software[15] project is developing ....

J. M. Smith, D. J. Farber, C. A. Gunter, S. M. Nettles, D. C. Feldmeier, and W. D. Sincoskie. SwitchWare: Accelerating Network Evolution (White Paper). June 1996.

....and to accelerate the pace at which network software is deployed. Applications running on end systems are allowed to inject code into the network to change the network s behavior to their favor. Active networking research concentrates on two commonly separated approaches: programmable switches [2, 6, 34] and capsules [27, 38] These two approaches can be viewed as the two extremes in terms of program code injection into network nodes. Programmable switches typically learn by implicit, out of band injection of code by a network administrator. Research in the area of programmable switches ....

....The system proposed here builds in part on the theoretical background and terminology introduced in [6] but extends the system s capability to downloading function modules in band, on the fly, and elaborates on the infrastructure needed to do so. 6. 4 University of Pennsylvania The SwitchWare [34, 17] project mainly uses the programmable switch approach with three important components: active packets, switchlets, and a secure active router infrastructure. Active packets are similar to MIT s capsules and switchlets are programs that provide specific services on the network nodes and can be ....

Smith, J., Farber, D., et al., "SwitchWare: Accelerating Network Evolution", White Paper, June 1996

....for intelligence to be down loaded onto the switches themselves, achieving locality of access and the ability to change the functionality of services that a switch can offer. Netscript [17] uses this for dynamic deployment of software at all nodes ; the Active Networks project [18] and Switchware [19] use this approach to allow data to carry their own networking algorithms with them. Our mobile agents use a common, low level control interface for communicating with switches. They achieve both locality of access, by moving code close to switches, and management flexibility in combination with ....

J. M. Smith, D. J. Farber, C. A. Gunter, S. M. Nettles, D. C. Feldmeier, and W. D. Sincoskie, "Switchware: Accelerating network evolution," Tech. Rep., CIS Department, University of Pennsylvania and Bell Communications Research, June 1996, White Paper.

.... of the canonical active network model defined by Tennenhouse [1] This canonical active network model forms the basis of several alternative active network implementations that are currently being investigated under DARPA s Active Nets program, including ANTS [15] CANES [16] and Switchware [17], and Netscript [18] These alternative implementations primarily differ in the set of atomic primitives that are supported at the active nodes and in the flexibility with which capsule routines can be composed using the primitives of the active node. For instance, ANTS allows capsule routines to ....

J. Smith, "Switchware: Accelerating Network Evolution," Tech. Report MS-CIS-96-38, CIS Dept., Univ. of Pennsylvania, 1996.

....End to end code shipping to improve performance has been studied in the context of RPC [17, 14] Our approach offers a greater scope for customization by including intermediate nodes as well as end systems. There are several new efforts investigating active networks. The Switchware project [16] is developing a programmable switch approach to explore the use of formal methods to assure network security. The Active Bridge [1] is their first example of such a programmable network element. The Netscript project [23] is addressing network management tasks (such as routing, packet analysis, ....

J. Smith et al. SwitchWare Accelerating Network Evolution. Technical Report MS-CIS-96-38, CIS Dept., Univ. of Pennsylvannia, May 1996.

....their experiments did not address the impact of this processing on other network traffic, their results are consistent with ours, as are their conclusions about the utility of application specific processing within the network. Other current projects building programmable networks are Switchware [22], whose Active Bridge demonstrates the benefits of active networking in terms of enhanced functionality rather than improved performance, and Netscript [29] which focuses on management tasks. Our work has been influenced by the philosophy of Application Level Framing (ALF) 9] a design guideline ....

J. Smith et al. SwitchWare Accelerating Network Evolution. Technical Report MS-CIS-96-38, CIS Dept., Univ. of Pennsylvannia, May 1996.

No context found.

J. M. Smith, D. J. Farber, C. A. Gunter, S. M Nettles, D. C. Feldmeier, and W. D. Sincoskie. SwitchWare: Accelerating network evolution. Technical Report MS-CIS-96-38, CIS Dept. University of Pennsylvania, 1996.

No context found.

J. M. Smith, D. J. Farber, C. A. Gunter, S. M Nettles, D. C. Feldmeier, and W. D. Sincoskie. SwitchWare: Accelerating Network Evolution. Technical Report MS-CIS-96-38, CIS Dept. University of Pennsylvania, 1996.

No context found.

J. M. Smith, D. J. Farber, C. A. Gunter, S. M. Nettles, D. C. Feldmeier, and W. D. Sincoskie. Switchware: Accelerating network evolution (white paper). Technical report, University of Pennsylvania, URL: http//www.cis.upenn.edu/ jms/white-paper.ps, June 1996.

No context found.

J.M. Smith, D.J. Farber, C.A. Gunter, S.M. Nettles, D.C. Feldmeier, and W.D. Sincoskie, "SwitchWare: Accelerating Network Evolution," White Paper, 26 June 1996. Available at http://www.cis.upenn.edu/~jms/white-paper.ps

No context found.

J. Smith et al. SwitchWare Accelerating Network Evolution. Technical Report MS-CIS-96-38, CIS Dept.,Univ. of Pennsylvannia, May 1996.

No context found.

J. Smith et al. SwitchWare Accelerating Network Evolution. Technical Report MS-CIS-96-38, CIS Dept.,Univ. of Pennsylvannia, May 1996.

No context found.

J.M. Smith et al. SwitchWare: Accelerating Network Evolution (White Paper). June 1996.

No context found.

J. Smith, D. Farber, C. Gunter, S. Nettles, D. Feldmeier, and W. Sincoskie. SwitchWare: Accelerating Network Evolution (White Paper). Personal communication, June 1996.

First 50 documents

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC