One-way Active Measurement Protocol (OWAMP) Requirements

Shalunov, Stanislav; Teitelbaum, B.

doi:10.17487/rfc3763

Cited by 16 publications

(9 citation statements)

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“…An accurate measurement that uses synchronization satisfies one-way measurement conditions [13]. However, if the path is to be selected within a short interval, measurements by a method that requires control packets may not finish in that short interval if there is an error in a control packet.…”

Section: Delay Measurement Methodsmentioning

confidence: 99%

“…Although methods for making synchronized measurements include a method for using the ping timestamp option, the communication destination must support the timestamp option. An accurate measurement that uses synchronization satisfies one-way measurement conditions [13]. However, if the path is to be selected within a short interval, measurements by a method that requires control packets may not finish in that short interval if there is an error in a control packet.…”

Section: Delay Measurement Methodsmentioning

confidence: 99%

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Measurement method of one‐way differential delay for end‐to‐end path selection on multihoming

Ogawa¹,

Sawai²,

Iida³

et al. 2007

Electron. Comm. Jpn. Pt. I

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SUMMARYIn a multihoming communications environment in which multiple communications interfaces are connected to a single terminal to use multiple paths, if different paths are used for the going-out path and return path, more efficient information communications may be possible. To enable this to occur, one-way delay must be taken into account to select the appropriate interface. However, it is generally difficult to directly obtain an accurate one-way delay because the communications path load varies according to such factors as the time period and amount of communications, and the going-out path delay and return path delay cannot be easily separated. In this paper, the authors simply obtain the one-way approximate differential delays from multiple patterns of round-trip delay combinations and propose a method of selecting the path based on these differentials. This method has such features as control packets for measurement and synchronization with the communication destination which are unnecessary and it is extendable since it does not depend on the network layer. The authors also implemented the proposed method on a computer by using ICMP and evaluated it experimentally in various types of multihoming communications environments. The results showed that one-way path selection is possible and that the proposed method is effective.

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Section: Delay Measurement Methodsmentioning

confidence: 99%

Section: Delay Measurement Methodsmentioning

confidence: 99%

Measurement method of one‐way differential delay for end‐to‐end path selection on multihoming

Ogawa¹,

Sawai²,

Iida³

et al. 2007

Electron. Comm. Jpn. Pt. I

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“…The OWAMP, standardized by the IP Performance Metrics working group of the Internet Engineering Task Force (IETF) [21], is used for detection of delay in the traffic network. The OWAMP, standardized by the IP Performance Metrics working group of the Internet Engineering Task Force (IETF) [21], is used for detection of delay in the traffic network.…”

Section: Load Balancing Mechanismmentioning

confidence: 99%

“…For load balancing for the TN links, a mechanism able to measure the delay on the network links is implemented. The OWAMP, standardized by the IP Performance Metrics working group of the Internet Engineering Task Force (IETF) [21], is used for detection of delay in the traffic network. The OWAMP server in the AGW transmits test packets that are received by the OWAMP Client in each eNB.…”

Section: Load Balancing Mechanismmentioning

confidence: 99%

Congestion-Aware Handover in LTE Systems for Load Balancing in Transport Network

Marwat¹,

Meyer

Weerawardane

et al. 2014

ETRI J

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Long‐Term Evolution employs a hard handover procedure. To reduce the interruption of data flow, downlink data is forwarded from the serving eNodeB (eNB) to the target eNB during handover. In cellular networks, unbalanced loads may lead to congestion in both the radio network and the backhaul network, resulting in bad end‐to‐end performance as well as causing unfairness among the users sharing the bottleneck link. This work focuses on congestion in the transport network. Handovers toward less loaded cells can help redistribute the load of the bottleneck link; such a mechanism is known as load balancing. The results show that the introduction of such a handover mechanism into the simulation environment positively influences the system performance. This is because terminals spend more time in the cell; hence, a better reception is offered. The utilization of load balancing can be used to further improve the performance of cellular systems that are experiencing congestion on a bottleneck link due to an uneven load.

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“…To support path evaluation and SLS violation detection, we adopt a strategy based on active end-to-end measurements of QoS parameters. So thus, SRMs must incorporate efficient measurement methods following the recommendations of recent standardization efforts [21,22]. In the transit AS side, we assume that there is a general purpose measurement system to provide local traffic characteristics and periodically monitor the usage of the resources previously allocated to each service.…”

Section: Implementation Considerationsmentioning

confidence: 99%

A Framework for Cooperative Inter-Domain QoS Routing

Fonte

Monteiro

Yannuzzi

et al.

IFIP International Federation for Information Processing

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Currently, a straightforward way to design BGP-based Traffic Engineering (TE) tools for stub Autonomous Systems (AS) is to rely on selfish routing mechanisms. Although TE tools can find an optimal solution, this optimum represents only a local optimum for outbound traffic. Indeed, this is one of the main limitations of the selfish routing approach. This approach makes the TE tools unaware of the effects of their route choices on transit AS throughout the chosen paths, due to uncoordinated routing decisions, and congestion can occur on distant intra-or inter-domain links. Thus, cooperation among AS is the key to avoid the performance degradation and routing instability caused by the selfish routing approach and it would be fundamental for the future QoS-aware Internet. With these objectives in mind this paper presents and discusses a framework for coordinated Inter-domain QoS Routing (QoSR) decisions among stub and downstream AS taking into account multiple traffic QoS constraints and routing preferences. The paper includes a description of the main mechanisms and algorithms that integrate the framework, and finally a discussion of the implementation issues.

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One-way Active Measurement Protocol (OWAMP) Requirements

Cited by 16 publications

References 0 publications

Measurement method of one‐way differential delay for end‐to‐end path selection on multihoming

Measurement method of one‐way differential delay for end‐to‐end path selection on multihoming

Congestion-Aware Handover in LTE Systems for Load Balancing in Transport Network

A Framework for Cooperative Inter-Domain QoS Routing

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