On the Average Rates of Data Communications' Traffic Flows Problem

Eyinagho, Monday Ofori; Falaki, S. O.

doi:10.3923/rjit.2018.1.6

Cited by 1 publication

(3 citation statements)

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“…b's (of Figs. 3 to 6) side-by-side, it can be seen that, the more the buffers' capacities that needed to be provisioned for a particular flow in nodal devices, the less the number of flows (at given output ports' issuing rates) that can be accommodated in the nodal devices per BDP specification of 1.25 GB: this is of course normal, as can be seen from (25). The behaviour of one of the plots in each of the Figs.…”

Section: Discussionmentioning

confidence: 99%

“…But in [25], it was shown that for an origin-destination path, (13) where, M and L are as were previously defined. Equation ( 13) is similar to the formula for the average rate of a TCP flow between two connections in the Internet, given in [26, p. 9] as (14) TCP average rate (bit/secs.)…”

Section: Figure 1 Burstiness Evolution Along a Switched Networkmentioning

confidence: 99%

“…issuing rate at the router's output interface: the formula specifies buffers' sizes of approximately 1.25GB for routers, and was obtained in 1994 using at most 8-TCP flows on a 40 Mbps core link [29], [30]. Take for example, in the second column (the column of Node 1) of Table 2, for a flow that is issued out of the nodal device (router/switch) at rate COUT = 1,000 Mbps, and 2.496 MB is provisioned for the flow in the nodal device, the number of flows that can be provisioned for (accommodated), in the context of BDP router buffer capacity specification of 1.25 GB is given by (25): that is, 1.25 GB/2.496 MB = 501 flows; for a flow that is issued out of the nodal device at rate COUT = 500 Mbps, and 1.246 MB is provisioned for the flow in the nodal device, 1.25 GB/1.246 MB = 1003 flows can be provisioned for (accommodated); for a flow that is issued out of the nodal device at rate COUT = 40 Mbps, and 0.096 MB is provisioned for the flow in the nodal device, 1.25 GB/0.096 MB = 13,021 flows can be provisioned for (accommodated); and so on.…”

Section: Illustrative Example and Model Validationmentioning

confidence: 99%

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Real-Time Nodal Devices’ Buffer Capacities Provisioning for Lossless Data Communication Traffic Flows

Eyinagho

Falaki

2022

Preprint

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Carrier Service Providers define a Bandwidth Profile, which enables them bill for bandwidth usage and engineer their networks’ resources to provide performance assurances for in-profile Service Frames. The CBS (Committed Burst Size) is one of the parameters of this profile. Similarly, in the context of the guaranteed and controlled-load services’ provisioning of theInternet, IETF’s (Internet Engineering Task Force’s) T-SPEC (traffic specification) defines a parameter known as burst tolerance, b. Likewise, in the Intserv (Integrated Service) use of RSVP (Resource Reservation Protocol), a service type is specified and quantitative traffic parameters are expressed using the token (buffered leaky) bucket model: Maximum Burst Size, B is one of the parameters of this model. Therefore, a major question that is usually asked in these contexts is: How should applications determine the CBS or b or B of their flows? This basically will be for the purpose of engendering optimal use of network resources, specifically, the use of buffer capacities in nodal devices (switches/routers). In this paper, we describe the derivation of a formula for Nodal Devices Buffers’ Capacities Provisioning, for lossless data communication traffic flows.

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Section: Discussionmentioning

confidence: 99%

Section: Figure 1 Burstiness Evolution Along a Switched Networkmentioning

confidence: 99%