D. Halls and S. Rooney, "Controlling the Tempest: Adaptive management in advanced ATM control architectures," Accepted for Publication in: IEEE JSAC 1998, 1998.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....being injected into the network. Once on a router, PLAN programs can call resident service routines, which can amongst other things authenticate the program. An alternative approach to Active Networks is o ered by Cambridge University s (UK) DCAN (Distributed Control in ATM Networks) project [94]. This project considers it unwise to interfere in the data path, and examines network control using the control path. Switchlets can be created, each of which is allocated a share of the switch resources, thus providing bandwidth reservation for QoS. Every switchlet exports a management control ....

D. Halls and S. Rooney. Controlling The Tempest: Adaptive management in advanced ATM control architectures. 1998.

....locus of processing complexity, rather than entire packets [CJRS89] Today, with fast forwarding technologies operating at multi Gb s line rates, the arguments for operating in the control plane are clear. This has led to architectures for separating control and transport planes in ATM networks [HR98, vdML98] and in the Internet [SAM 98] This control transport separation is already performed in an implicit way in an IP Switch [NML98] once a flow has been detected, the switch controller operates independently of the switched flows. The separation is made explicit in the Multigigabit ....

D. A. Halls and S. G. Rooney. Controlling the Tempest: Adaptive Management in Advanced ATM Control Architectures. IEEE Journal on Selected Areas in Communication (Special Issue on Protocol Architectures for 21st Century Applications), 16(3), April 1998.

....simultaneously is a new idea and techniques for ensuring the general health of the network need to be rethought. On going experiments have been looking at issues as diverse as the application of mobile software agents moving between network nodes in order to achieve more adaptive management [15] and the use of measurement based effective bandwidth estimation to perform resource management at various levels of granularity in our framework. In summary, the Tempest work is premised on the fact that there will be many different control architectures on a widely deployed multi service ....

....this section describes address a practical problem. While this problem is particular to the experimental environment it is an exemplar of a class of problem in which distributed data must be correlated. Automatic Resource Freeing (ARF) agents were implemented to operate in the Tempest framework [15]. Each ARF agent is associated with a particular control architecture. The agent moves through the virtual network of its control architecture and invokes operations on the Ariel interfaces of the switchlets in this virtual network to determine the state of connections. The ARF agent compares the ....

D. Halls and S. Rooney, "Controlling the Tempest: Adaptive management in advanced ATM control architectures," Accepted for Publication in: IEEE JSAC 1998, 1998.

....simultaneously is a new idea and techniques for ensuring the general health of the network need to be rethought. On going experiments have been looking at issues as diverse as the application of mobile software agents moving between network nodes in order to achieve more adaptive management [15] and the use of measurement based effective bandwidth estimation to perform resource management at various levels of granularity in our framework. The Tempest frees network operators from having to define one single unified control architecture capable of satisfying all possible future services ....

D. Halls and S. Rooney, "Controlling the Tempest: Adaptive management in advanced ATM control architectures," Accepted for Publication in: IEEE JSAC 1998, 1998. 5

....with support for working in low bandwidth and disconnected environments. 1.2.3 Migratory Applications A large number of mobile agent systems have been and continue to be developed. The applications of these systems include active documents [AG96] managing hypermedia [DHDD96] network management [HR97] and information gathering [RGK96] One mobile agent system which has specifically linked user and application mobility is the Migratory Applications work using Obliq [BC95] This work employs the Obliq mobile agent system so that applications can move from one user to another or can be ....

D. Halls and S. Rooney. Controlling The Tempest: Adaptive management in advanced ATM control architectures. Position paper, January 1997.

....when the agent is migrated. Neither is he burdened with keeping an explicit note of which task the agent was running before it moved and then restoring it in the same position afterwards. We have built a higher order mobile code system, the Tube, and used it in a number of innovative applications [Halls97, Bates96, Halls96, Halls98, Bacon97]. As well as allowing programs to move over a network, the Tube also provides restricted execution environments to prevent access by agents to sensitive resources, multi threading using POSIX threads, a noticeboard for agents to post messages for other agents to read, a user interface toolkit with ....

David Halls and Sean Rooney. Controlling The Tempest: Adaptive management in advanced ATM control architectures. To appear in IEEE Journal on Selected Areas in Communication, 1998. (p. 2)

....is a new idea, as a consequence techniques for ensuring the general health of the network need to be rethought. On going experiments have been looking at issues as diverse as the application of mobile software agents moving between network nodes in order to achieve more adaptive management [15], and the use of measurement based effective bandwidth estimation to perform resource management at various levels of granularity in our framework. In summary, the Tempest work is premised on the fact that there will be many different control architectures on a widely deployed multi service ....

....this section describes address a practical problem. While this problem is particular to the experimental environment it is an exemplar of a class of problem in which distributed data must be correlated. Automatic Resource Freeing (ARF) agents were implemented to operate in the Tempest framework [15]. Each ARF agent is associated with a particular control architecture. The agent moves through the virtual network of its control architecture and invokes operations on the Ariel interfaces of the switchlets in this virtual network to determine the state of connections. The ARF agent compares the ....

D. Halls and S. Rooney, "Controlling the Tempest: Adaptive management in advanced ATM control architectures," IEEE JSAC, vol. 16, pp. 414--423, April 1998.

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