ElasticTree: Saving Energy in Data Center Networks pptx

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Ngày tải lên: 05/07/2014, 05:20

... most energy savings. 3.1.4 Traffic in a R ealistic Data Center In order to evaluate energy savings with a re al data center workload, we collected system and net- work traces from a production data ... different scaling factors, as well as for different intra data center versus outside data center (exter- nal) traffic ratios, we observe energy savings ranging from 25-62...

Ngày tải lên: 23/03/2014, 13:20

... for power savings in data center networks due to two main reasons: – Networks are over provisioned for worst case load – Newer network topologies Example Traffic in a Realistic Data Center • Collected ... the most active switch above or below (whichever is higher). ElasticTree: Saving Energy in Data Center Networks Brandon Heller, SriniSeetharaman, PriyaMahadeva...

Ngày tải lên: 05/07/2014, 05:20

... Ahn, “Optimizing data replication for expanding ring-based queries in wireless sensor networks, ” in Proceedings of the 4th International Symposium on Model- ing and Optimization in Mobile, Ad ... Many existing research works address the problem of minimiz- ing energy consumption by minimizing the communication overhead, such as adopting data aggregation to reduce data transmis...

Ngày tải lên: 22/06/2014, 19:20

... 2005 Cisco Systems, Inc. All rights reserved. DC-1101 11201_05_2005_c2 Business Continuance Providing the Infrastructure for Business Continuance • Business Continuance How much data can you afford ... Management networks Good Design Requires Defined Business Policies 191919 © 2005 Cisco Systems, Inc. All rights reserved. DC-1101 11201_05_2005_c2 Caching in the Data Center Offload...

Ngày tải lên: 20/12/2013, 19:15

... In addition to assisting in spoofing prevention, the SC can also be used to pinpoint the origin of spoofing attacks. For example, when a malicious user tries to contaminate the ARP table in ... access switch residing in the basement of a building aggregating user traffic within the building. In a typical ETTx deployment, a building often consists of business users (in the ground...

Ngày tải lên: 05/03/2014, 23:20

... the preemptive mechanism in joint leasing and sensing-based CRNs. Keywords: cognitive radio networks, joint leasing and sensing, non-preemptive mechanism, QoS tradeoff 1. Introduction Cognitive ... PU in service left), the waiting sig- naling is canceled for PUs in the primary system via the spectrum broker. In the situation without waiting signal- ing, the proposed mechanism works...

Ngày tải lên: 20/06/2014, 22:20

... component of the emerging cognitive radio networks. In this article, we study the spectrum sensing problem jointly taking the fad- ing and the location of SUs into account. We obtain the overall average ... section. ‘ Interference modeling’ section depicts the details of interference modeling. Our simulation results are given in ‘Simulation results’ section. Finally, we conclude this art...

Ngày tải lên: 21/06/2014, 00:20

... station join the tree. In Figure 3(b), we only show the step during which neighbors of nodes S5 join the tree. Finally, the complete tree is depicted in Figure 3(c). 3.3. Tree Maintenance and Rekeying. ... example in [6], the authors focus on developing cost -saving mechanisms while weakening the threat model. They propose Key Infection, a lightweight security protocol suitable for use...

Ngày tải lên: 21/06/2014, 11:20

... TCP source inactivity T after receiving an attack can be obtained as in T = ∞  i=1 t i ·Pr ( T = t i ) . (21) 3.7. Obtaining the TCP Inactivity Percentage due to the Lion Attack. We can assume an inactivity ... J M. Park, “Ensuring trustworthy spectrum sensing in cognitive radio networks, ” in Proceedings of the 1st IEEE Workshop on Networking Technologies for Software Defined Radio N...

Ngày tải lên: 21/06/2014, 11:20