Taking the Edge off with Espresso

Yap, Kok-Kiong; Motiwala, Murtaza; Rahe, Jeremy; Padgett, Steve; Holliman, Matthew J.; Baldus, Gary; Hines, Marcus; Kim, Tae‐Eun; Narayanan, Arun; Jain, Ankur; Lin, Victor S.‐Y.; Rice, Colin; Rogan, Brian; Singh, Arjun; Tanaka, Bert; Verma, Manish; Sood, Puneet; Tariq, Mukarram Bin; Tierney, Matt; Trumic, Dzevad; Valancius, Vytautas; Ying, Calvin; Kallahalla, Mahesh; Koley, Bikash; Vahdat, Amin

doi:10.1145/3098822.3098854

Cited by 145 publications

(16 citation statements)

References 23 publications

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“…Effective linking networks are essential for high-quality end-to-end data transmission because end-to-end data transmission on the Internet typically requires many networks (such as carrier networks and interdata center-wide area networks). Google's SDN-based Internet peering edge routing architecture, Espresso [35], runs in looking edge routers that connect external peers and data centers. Espresso's architecture makes introducing new networking features at the peering edge much easier.…”

Section: Advancements In Applicationmentioning

confidence: 99%

Security and Network Approach in Smart Environments – Role of SD-WAN Technology

Saeed

2023

Preprint

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A networking program established to meet current network needs within an extensive network with new architectures. This study presents a novel model of network connections with various devices such as mobile phones and laptops to control overall network management. This study compares and contrasts two home networks, each with its uses. Three linked Alcatel-Lucent 7750 IP service edge routers connect each network to an ISP network. This study builds on multi-carrier assured-service-quality connection tunnels to accommodate multi-ISP scenarios. In this regard, logical manipulation is taken for all connected devices with device abstraction and network programs. Software-Defined Networking (SDN) is a potential option for the future Internet. Two features can define SDN: one is the elimination from the data plane of the control plane, and the other includes programming for the optimization of network applications. SDN can provide additional architecture, efficiency, and versatility for complex applications to meet modern network architectures.

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Section: Advancements In Applicationmentioning

confidence: 99%

Security and Network Approach in Smart Environments – Role of SD-WAN Technology

Saeed

2023

Preprint

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“…The OFC searches for a path that can improve the communication quality from the calculated estimated acquisition throughput of each path. The path condition that can improve communication quality is given by (7).…”

Section: Path Switchingmentioning

confidence: 99%

“…Here, Z current indicates the estimated acquisition throughout for the path currently being used by the flow being switched. The condition in (7) indicates that the selected path has an estimated acquisition throughput that is greater than the current path, and is capable of obtaining a throughput greater than the threshold for judging communication quality degradation. However, if there are no paths that can improve the communication quality, the OFC starts searching for a server with a path that can fulfill that role.…”

Section: Path Switchingmentioning

confidence: 99%

Adaptive Server and Path Switching for Content Delivery Networks

Nishimuta

Nobayashi

Ikenaga

2020

IEICE Trans. Inf. & Syst.

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The communications quality of content delivery networks (CDNs), which are geographically distributed networks that have been optimized for content delivery, deteriorates when interflow congestion conditions are severe. Herein, we propose an adaptive server and path switching scheme that is based on the estimated acquisition throughput of each path. We also provide simulation results that show our proposed method can provide higher throughput performance levels than existing methods.

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“…Routing can be flexibly and dynamically controlled by using network virtualization by software-defined networking and network functions virtualization [9] to achieve finegrained traffic engineering and/or service function chaining with various types of virtual network functions such as intrusion detection systems or deep packet inspection. In addition, schemes for stochastically routing flows to multipaths are now used in real networks [10], [11]. As a result, individual measurement flows may pass through different paths even between the same origin-destination (O-D) node pair.…”

Section: Introductionmentioning

confidence: 99%

Network Tomography Using Routing Probability for Undeterministic Routing

Tagyo

Ikegami

Kawahara

2021

IEICE Trans. Commun.

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The increased performance of mobile terminals has made it feasible to collect data using users' terminals. By making the best use of the network performance data widely collected in this way, network operators should deeply understand the current network conditions, identify the performance-degraded components in the network, and estimate the degree of their performance degradation. For their demands, one powerful solution with such end-to-end data measured by users' terminals is network tomography. Meanwhile, with the advance of network virtualization by software-defined networking, routing is dynamically changed due to congestion or other factors, and each end-to-end measurement flow collected from users may pass through different paths between even the same origin-destination node pair. Therefore, it is difficult and costly to identify through which path each measurement flow has passed, so it is also difficult to naively apply conventional network tomography to such networks where the measurement paths cannot be uniquely determined. We propose a novel network tomography for the networks with undeterministic routing where the measurement flows pass through multiple paths in spite of the origin-destination node pair being the same. The basic idea of our method is to introduce routing probability in accordance with the aggregated information of measurement flows. We present two algorithms and evaluate their performances by comparing them with algorithms of conventional tomography using determined routing information. Moreover, we verify that the proposed algorithms are applicable to a more practical network.

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Taking the Edge off with Espresso

Cited by 145 publications

References 23 publications

Security and Network Approach in Smart Environments – Role of SD-WAN Technology

Security and Network Approach in Smart Environments – Role of SD-WAN Technology

Adaptive Server and Path Switching for Content Delivery Networks

Network Tomography Using Routing Probability for Undeterministic Routing

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