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We design ABLB (Adaptive Block Load Balancing), a switch-based adaptive routing load balancing mechanism based on the granularity of the flow block and aware of PFC pauses in RDMA networks. We evaluate ABLB with the NS-3 simulator under the collective ...

Deep learning training (DLT), e.g., large language model (LLM) training, has become one of the most important services in multitenant cloud computing. By deeply studying in-production DLT jobs, we observed that communication contention among different ...

In this article, we investigate the performance of DCN protocols evaluated on the FABRIC testbed. We developed automation tools for use on FABRIC to assist in DCN topology establishment, configuring devices with desired protocol suites, setting up test ...

Congestion control is crucial for the overall performance of data center networks and still faces considerable challenges. Recently, credit-driven congestion control has been emerging to enable precise flow control for current high-speed and highly ...

With the development of cloud technology and people’s needs, many applications need to be supported by data centers. Therefore, excellent network topology is needed to meet the requirements of high bandwidth, low delay and stable network ...

More and more latency-sensitive applications are being introduced into the data center. Performance of such applications can be limited by the high latency of the network interconnect. Because the conventional network stack is designed not only for LAN, ...

Data center played a key role in main internet infrastructure with the development of cloud computing. However, the traditional structure of data center networks has the problems of poor scalability, limited number of ports, and high equipment cost etc. ...

BCube is one kind of important data center networks. Hamiltonicity and Hamiltonian connectivity have significant applications in communication networks. So far, there have been many results concerning fault-tolerant Hamiltonicity and fault-...

The visible light communication (VLC) has the potential to provide dense and fast connectivity at low cost. In this paper, we propose a novel VLC enabled Wireless Small-World Data Center (WSWDC). It employs VLC links to achieve a fully wireless data ...

In the last decade we noticed a growth on studies regarding energy savings in data centers. The main reasons include political factors such as compliance with global protocols of conscious energy consumption, financial incentives such as tax reduction, ...

Point-to-multipoint (P2MP) Bidirectional Forwarding Detection (BFD) is designed to verify multipoint connectivity. This document specifies the support of P2MP BFD in Transparent Interconnection of Lots of Links (TRILL). Similar to TRILL point-to-point ...

The widespread exploitation of cloud technologies forces cloud providers to forecast peaks of requests to guarantee always the adequate quality of service to their currently served customers. Static resource provisioning is rarely affordable for large ...

Shareable backup is an economical and effective way to mask failures from application performance. A small number of backup switches are shared network-wide for repairing failures on demand so that the network quickly recovers to its full capacity ...

In this paper, we propose a holistic power management of the data center network (DCN) via coordination among distinct controllers with different functionality and scope. This includes - a local controller (LC) that has visibility only at individual ...

Optical interconnects are promising to address the dilemma faced by traditional electrical networks in data centers. However, some issues, including weak connectivity of the topology, limited scalability of the control system, and inefficient use of WDM ...

Data center network (DCN), a type of network featuring low delays and high bandwidths, exchanges information rapidly through high-performance network switches. Currently, DCN provides various distributed services to satisfy user requirements. However, ...

The advent and continued growth of large data centers has led to much interest in switch architectures that can economically meet the high capacities needed for interconnecting the thousands of servers in these data centers. Various multilayer ...

With the widespread deployment of cloud services, data center networks are developing toward large-scale, multi-path networks. Conventional switching-oriented data center network meets difficulties in terms of scalability and flexibility to support ...

Large-scale online services and distributed execution engines i.e., MapReduce and Dryad generate large volumes of traffic in data center networks. As a consequence, significant congestion can occur in the data center network. To the best of our knowledge,...

As network demand increases, data center network operators face a number of challenges including the need to add capacity to the network. Unfortunately, network upgrades can be an expensive proposition, particularly at the edge of the network where most ...