Stochastic allocation of virtual paths to ATM links

Pióro, Michał; Gajowniczek, Piotr

doi:10.1007/978-0-387-34881-0_8

Cited by 8 publications

(1 citation statement)

References 6 publications

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“…and references [9,10] rn Two-terminal reliability for path S5 (2-4). Note that nodes 2 and 4 are 3-connected.…”

Section: Examplementioning

confidence: 99%

Effect of resource sharing and VP bandwidth control schemes on the capacity related reliability of ATM transport networks

Kyandoghere

IEEE GLOBECOM 1998 (Cat. NO. 98CH36250)

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Since high availability requirements are expected to increase in the B-ISDN era, adequate methods are needed, which allow network designers and operators to outline the relation between available network resources and actual traffic demands on one hand and the reachable availability (performance index) for either the whole network or individual virtual path connections on the other hand. This paper suggests a simple and thus fast method for deriving the symbolic expression of the performance index in a compact form, from which a "capacity related reliability polynom" may easily he derived. Since the capacity of several subnetworks must be computed taking re-routing capability into account, an efficient procedure for capacity determination is also suggested. An example illustrates the procedure and particularly points out the effect of both resource sharing and VP bandwidth control schemes on the performance index.

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“…and references [9,10] rn Two-terminal reliability for path S5 (2-4). Note that nodes 2 and 4 are 3-connected.…”

Section: Examplementioning

confidence: 99%

Effect of resource sharing and VP bandwidth control schemes on the capacity related reliability of ATM transport networks

Kyandoghere

IEEE GLOBECOM 1998 (Cat. NO. 98CH36250)

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Dynamic Route Selection at Call Set-Up Level in ATM Networks

et al. 1997

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A new policy for routing in A TM networks is introduced. Virtual circuits are routed at call set-up level, by combining Call Admission Control (CAC) and routing decisions in a hop-by-hop fashion at the nodes along a path. The network traffic is divided into classes, homogeneous with respect to performance requirements and statistical characteristics, which are dynamically assigned bandwidth partitions over the network links, by means of scheduling algorithms at the switching nodes. At each node traversed, a call request of a certain class is first assigned a subset of outgoing links towards the destination, upon which the resources necessary to maintain the required level of Quality of Service (QoS) are available; then, a routing decision is taken, by choosing the least "cost" link, according to a specific criterion. The link costs are dynamically updated for all traffic classes, by means of local information and of aggregate information exchanged among neighbouring nodes, and are based on a measure of the link "saturation", in terms of some "distance" from the boundary of the load region in call-space that the multiplexer serving the link can support. In case that no route is available at a node, the call request is traced back to the least-loaded node (according to the measure chosen) among the ones already visited along the path. This strategy is analysed and compared by simulation, in terms of performance and of the capability of reacting to network failures, with a previous one that immediately drops the call at the node where blocking occurs. Keywords A TM, routing.

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Routing of Disjoint Backup Paths in ATM Networks

Pióro

Szczęśniak

1997

ATM Networks

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Stochastic allocation of virtual paths to ATM links

Cited by 8 publications

References 6 publications

Effect of resource sharing and VP bandwidth control schemes on the capacity related reliability of ATM transport networks

Effect of resource sharing and VP bandwidth control schemes on the capacity related reliability of ATM transport networks

Dynamic Route Selection at Call Set-Up Level in ATM Networks

Routing of Disjoint Backup Paths in ATM Networks

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