Managed Objects of Ethernet Passive Optical Networks (EPON)

Khermosh, Lior

doi:10.17487/rfc4837

Cited by 6 publications

(2 citation statements)

References 12 publications

(6 reference statements)

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“…Typical examples are the IEEE 802.11 protocols [27], which are used in Wi-Fi networks, the multipoint control protocol (MPCP) [28] which is used in Ethernet passive optical networks (EPONs), and the time division multiple access (TDMA) Ethernet proposed in [29]. The TDMA Ethernet seems to be a good candidate for POTORI, as it allows one server at a time to use the entire available bandwidth for transmission in order to achieve low latency and low packet drop in the network.…”

Section: Application Of Potori In Data Center Networkmentioning

confidence: 99%

POTORI: A Passive Optical Top-of-Rack Interconnect Architecture for Data Centers

Cheng¹,

Fiorani²,

Lin³

et al. 2017

J. Opt. Commun. Netw.

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Abstract-Several optical interconnect architectures inside data centers (DCs) have been proposed to efficiently handle the rapidly growing traffic demand. However, not many works have tackled the interconnects at top-of-rack (ToR), which have a large impact on the performance of the data center networks (DCNs) and can introduce serious scalability limitations due to the high cost and power consumption. In this paper, we propose a passive optical ToR interconnect architecture (POTORI) to replace the conventional electronic packet switch (EPS) in the access tier of DCNs. In the data plane, POTORI relies on a passive optical coupler to interconnect the servers within the rack and the interfaces toward the aggregation/core tiers. The POTORI control plane is based on a centralized rack controller responsible for managing the communications among the servers in the rack. We propose a cycle-based medium access control (MAC) protocol to efficiently manage the exchange of control messages and the data transmission inside the rack. We also introduce and evaluate a dynamic bandwidth allocation (DBA) algorithm for POTORI, namely Largest First (LF). Extensive simulation results show that, with the use of fast tunable optical transceivers, POTORI and the proposed LF strategy are able to achieve an average packet delay below 10 µs under realistic DC traffic scenarios, which outperforms conventional EPSs. On the other hand, with slower tunable optical transceivers, a careful configuration of the network parameters (e.g., maximum cycletime of the MAC protocol) is necessary to obtain a good network performance in terms of the average packet delay.Index Terms-Optical interconnect architectures, data center networks, medium access control (MAC), dynamic bandwidth allocation (DBA).

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Section: Application Of Potori In Data Center Networkmentioning

confidence: 99%

POTORI: A Passive Optical Top-of-Rack Interconnect Architecture for Data Centers

Cheng¹,

Fiorani²,

Lin³

et al. 2017

J. Opt. Commun. Netw.

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“…Note that managed objects for Operation, Administration and Maintenance (OAM) and Ethernet over Passive Optical Networks (EPON) clauses of IEEE 802.3ah are defined in EFM-COMMON-MIB [RFC4878] and EFM-EPON-MIB [RFC4837], respectively.…”

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confidence: 99%

Ethernet in the First Mile Copper (EFMCu) Interfaces MIB

Beili¹

2007

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Ethernet in the First Mile Copper (EFMCu) Interfaces MIB Status of This Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

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Centralized Control Plane for Passive Optical Top-of-Rack Interconnects in Data Centers

Cheng

Fiorani

Wosinska

et al. 2016

2016 IEEE Global Communications Conference (GLOBECOM)

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Several optical interconnect architectures inside data centers (DCs) have been proposed to efficiently handle the rapidly growing traffic demand. However, not many works have tackled the interconnects at top-of-rack (ToR), which have a large impact on the performance of the data center networks (DCNs) and can introduce serious scalability limitations due to the high cost and power consumption. In this paper, we propose a passive optical ToR interconnect architecture (POTORI) to replace the conventional electronic packet switch (EPS) in the access tier of DCNs. In the data plane, POTORI relies on a passive optical coupler to interconnect the servers within the rack and the interfaces toward the aggregation/core tiers. The POTORI control plane is based on a centralized rack controller responsible for managing the communications among the servers in the rack. We propose a cycle-based medium access control (MAC) protocol to efficiently manage the exchange of control messages and the data transmission inside the rack. We also introduce and evaluate a dynamic bandwidth allocation (DBA) algorithm for POTORI, namely Largest First (LF). Extensive simulation results show that, with the use of fast tunable optical transceivers, POTORI and the proposed LF strategy are able to achieve an average packet delay below 10 µs under realistic DC traffic scenarios, which outperforms conventional EPSs. On the other hand, with slower tunable optical transceivers, a careful configuration of the network parameters (e.g., maximum cycle-time of the MAC protocol) is necessary to obtain a good network performance in terms of the average packet delay. Index Terms-Optical interconnect architectures, data center networks, medium access control (MAC), dynamic bandwidth allocation (DBA).

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Managed Objects of Ethernet Passive Optical Networks (EPON)

Cited by 6 publications

References 12 publications

POTORI: A Passive Optical Top-of-Rack Interconnect Architecture for Data Centers

POTORI: A Passive Optical Top-of-Rack Interconnect Architecture for Data Centers

Ethernet in the First Mile Copper (EFMCu) Interfaces MIB

Centralized Control Plane for Passive Optical Top-of-Rack Interconnects in Data Centers

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