Connection precedence and preemption in military asynchronous transfer mode (ATM) networks

Poretsky, Scott

doi:10.1109/milcom.1998.722550

Cited by 7 publications

(6 citation statements)

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“…In order to minimize wastage, the set of LSPs to be preempted can be selected by optimizing an objective function that represents these two parameters, and the number of LSPs to be preempted. More specifically, the objective function could be any or a combination of the following [6], [7], [16].…”

Section: Mpls Technology and Preemption Problem Formulationmentioning

confidence: 99%

“…Each LSP can be represented by the following bandwidth module vectors (6). modules 1, 2, and 3 belong to .…”

Section: A Mathematical Formulationmentioning

confidence: 99%

“…Although not a mandatory attribute in the traditional IP world, preemption becomes indeed a more attractive strategy in a differentiated services scenario [6], [7]. Moreover, in the emerging optical network architectures, preemption policies can be used to reduce restoration time for high priority traffic trunks under fault conditions [1].…”

Section: Introductionmentioning

confidence: 99%

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New Preemption Policies for DiffServ-Aware Traffic Engineering to Minimize Rerouting in MPLS Networks

Oliveira

Scoglio

Akyildiz

et al. 2004

IEEE/ACM Trans. Networking

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The preemption policy currently in use in MPLS-enabled commercial routers selects LSPs for preemption based only on their priority and holding time. This can lead to waste of resources and excessive number of rerouting decisions. In this paper, a new preemption policy is proposed and complemented with an adaptive scheme that aims to minimize rerouting. The new policy combines the three main preemption optimization criteria: number of LSPs to be preempted, priority of the LSPs, and preempted bandwidth. Weights can be configured to stress the desired criteria. The new policy is complemented by an adaptive scheme that selects lower priority LSPs that can afford to have their rate reduced. The selected LSPs will fairly reduce their rate in order to accommodate the new high-priority LSP setup request. Performance comparisons of a nonpreemptive approach, a policy currently in use by commercial routers, and our policies are also investigated.

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Section: Mpls Technology and Preemption Problem Formulationmentioning

confidence: 99%

“…Each LSP can be represented by the following bandwidth module vectors (6). modules 1, 2, and 3 belong to .…”

Section: A Mathematical Formulationmentioning

confidence: 99%

See 1 more Smart Citation

New Preemption Policies for DiffServ-Aware Traffic Engineering to Minimize Rerouting in MPLS Networks

Oliveira

Scoglio

Akyildiz

et al. 2004

IEEE/ACM Trans. Networking

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“…The preemption policy for military ATM network is presented in [74] The preemption strategy that is based on connection service time is proposed in [76]. The objective of the preemption strategy is to maximize the throughput accrued.…”

Section: Number Of Connectionsmentioning

confidence: 99%

Preemption and re-routing control strategy for resource provisioning and path selection in connection oriented networks

Lau¹

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This thesis focuses on the preemption issues in connection-oriented networks, e.g. MPLS and ATM. Preemption mechanism primarily resides in the network management realm, where it functions by tearing down existing lower priority connections in order to provide resources for the higher priority connections. Generally, it is activated when the network experiences high congestion due to competitions between different connections and network resources must be provided to satisfy the new mission critical connections. However, by giving these limited resources to the critical connections through preemption, the duration spent and work done for the preempted connections are wasted. This could lead to lower network throughput as well as higher service interruption. Our first objective is to minimize this service disruption and loss of throughput. The general strategy is to provide rerouting capability to the existing connections, such that, these connections are rerouted before being torn down. By rerouting the connections as far as possible, the author shows that the network throughput loss is minimized while the service disruption is reduced significantly. Subsequently, this strategy is extended by using the preemption mechanism as an active entity for network path selection. Instead of using a longer alternative path (e.g. higher hop counts) when the network is congested, higher priority connections are allowed to route on the shortest possible path even though preemption may be triggered. It is shown that this strategy greatly improves network throughput as compared to existing preemption schemes since the

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“…Should they be released, or rather maintained, but with the lower QoS? The former approach is proposed in [12],…”

Section: Introductionmentioning

confidence: 99%

A network control and management framework supporting military quality of service

Kwiatkowski

George²

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341)

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To achieve good predictability of multimedia service behaviour in celYpacket based networks, end-to-end Quality of Service (QoS) guarantees must be supported. In military networks, when not enough capacity is available to support all traffic requests, messages carrying mission critical information should have higher priority over less important ones. In addition, it is preferable to gracefully "step down" the QoS of less important military flows in overloaded networks, instead of releasing these flows. We jointly call the above approaches delivering Military QoS (M-QoS). This paper argues that MQoS cannot be implemented in a flexible way using traditional standard ATMlIP network environments that are closed and monolithic. To achieve this purpose, the paper proposes the use of concepts of open and programmable multimedia networks currently under investigation by a number of research/standarisation institutions. A corresponding control and management architectural framework to deliver M-QoS is proposed. A description of an ATM experimental network, in which our framework has been implemented to deliver M-QoS, is also presented.

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Connection precedence and preemption in military asynchronous transfer mode (ATM) networks

Cited by 7 publications

References 0 publications

New Preemption Policies for DiffServ-Aware Traffic Engineering to Minimize Rerouting in MPLS Networks

New Preemption Policies for DiffServ-Aware Traffic Engineering to Minimize Rerouting in MPLS Networks

Preemption and re-routing control strategy for resource provisioning and path selection in connection oriented networks

A network control and management framework supporting military quality of service

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