Toshiba's Router Architecture Extensions for ATM : Overview

Katsube, Yasuhiro; Nagami, Kenichi; Esaki, Hiroshi

doi:10.17487/rfc2098

Cited by 52 publications

(18 citation statements)

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“…Then, it identifies "IP flow" and if the flow has a long-life, it performs "cut through" the software routing process to ATM switching and fully utilizes the high-speed ATM transport capability to obtain better end-to-end IP throughput. About the same time, Toshiba proposed their cell switch router [56] with similar concept. There are two common remarkable features for both systems (Fig.…”

Section: Fixed-mobile Convergence Ngn Technology Over Ip Networkmentioning

confidence: 99%

100-Year History and Future of Network System Technologies in Japan

Tode

Ito²

2017

IEICE Trans. Commun.

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SUMMARY Telecommunication networks have evolved from telephony networks to the Internet, and they sustainably support the development of a secured, safe, and comfortable society. The so-called "switching technology" including the evolved "network system technology" is one of the main infrastructure technologies used for realizing information communication services. On the occasion of completion of 100 years since the establishment of the IEICE, we summarize the history of network system technologies and present their future direction for the next generation. We mainly focus on a series of technologies that evolved through the discussions of the IEICE technical committees on switching engineering, launched 50 years ago, switching systems engineering, and network systems in action.

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Section: Fixed-mobile Convergence Ngn Technology Over Ip Networkmentioning

confidence: 99%

100-Year History and Future of Network System Technologies in Japan

Tode

Ito²

2017

IEICE Trans. Commun.

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“…The label-switched VC is used for cut-through packet forwarding [3]. For example, when Edge1 sends a packet to Edge2 using cut-through packet forwarding, Edge1 sends the packet through the label-switched VC.…”

Section: A Architectural Overviewmentioning

confidence: 99%

<title>Flow-aggregated traffic-driven label mapping in label-switching networks</title>

et al. 1998

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Abstract-Label-switching technology enables high performance and flexible layer-3 packet forwarding based on the fixed-length label information that is mapped to the layer-3 packet stream. A label-switching router (LSR) forwards layer-3 packets based on their layer-3 address information or their label information that is mapped to the layer-3 address information. Two label-mapping policies have been proposed. One is trafficdriven mapping, where the label is mapped for a layer-3 packet stream of each host-pair according to the actual packet arrival. The other is topology-driven mapping, where the label is mapped in advance for a layer-3 packet stream toward the same destination network, regardless of actual packet arrival to the LSR. This paper evaluates the required number of labels under each of these two label-mapping policies using real backbone traffic traces. The evaluation shows that both label-mapping policies require a large number of labels. In order to reduce the required number of labels, we propose a label-mapping policy that is a combination of the two label-mapping policies above. This is traffic-driven label mapping for the packet stream toward the same destination network. The evaluation shows that the proposed label-mapping policy requires only about one-tenth as many labels as the traffic-driven label mapping for the host-pair packet stream and the topology-driven label mapping for the destination-network packet stream.

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“…One is the data-driven scheme and the other is the control-driven one [2]. For example, the former scheme is implemented in "IP switch [6]" and Toshiba's "CSR (Cell Switch Router) [3]" and the latter one is adopted in Cisco's "Tag Switching [7]" and IBM's "ARIS (Aggregated Route-Based IP Switching) [11]". So far, we have analyzed the performance of LSR by focusing on the processing delay of IP packets in Layer 3 routing kernel in case of the data-driven scheme [5], in which we treated real time traffic and assumed the routing kernel with buffer of infinite length.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis for QoS Provisioning in MPLS Networks

Tamura

Kawahara

Oie

2004

Telecommunication Systems

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LSR(Label Switching Router)s in MPLS (Multiprotocol Label Switching) networks map arriving IP flows into some labels on Layer 2 switching fabric and establish LSP(Label Switching Path)s. By using LSPs, LSRs can not only transmit IP packets fast with cut-through mechanism, but also solve traffic engineering issue to maximize resource utilization in the whole MPLS networks. So far, we have analyzed delay performance of LSR by focusing only on the real time traffic transmission. In this paper, we will consider the case where non-real time traffic arrives at LSR as well as real time traffic and analyze those packet loss rate under the assumption that the cut-through transmission is applied only to real time traffic. Furthermore, we discuss the bandwidth allocation policy and the buffer dimensioning to meet the requirement with respect to both delay for real time traffic and loss probability for non-real time one, and show the guide for QoS provisioning in MPLS networks.

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Toshiba's Router Architecture Extensions for ATM : Overview

Cited by 52 publications

References 1 publication

100-Year History and Future of Network System Technologies in Japan

100-Year History and Future of Network System Technologies in Japan

<title>Flow-aggregated traffic-driven label mapping in label-switching networks</title>

Performance Analysis for QoS Provisioning in MPLS Networks

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