Filters








8,700 Hits in 5.3 sec

Using mini-flash crowds to infer resource constraints in remote web servers

Pratap Ramamurthy, Vyas Sekar, Aditya Akella, Balachander Krishnamurthy, Anees Shaikh
2007 Proceedings of the 2007 SIGCOMM workshop on Internet network management - INM '07  
Administrators today do not have the requisite tools to fully understand the effect that flash crowds can have on server-side resources.  ...  A more fine-grained understanding of the performance of servers under emulated but controlled flash crowd like conditions can guide administrators to make more efficient provisioning and resource management  ...  DISCUSSION Differences with real flash-crowds. One of the key emphasis of our work is that we use a mini-flash crowd that differs significantly from a real flash crowd.  ... 
doi:10.1145/1321753.1321760 fatcat:f6ex4chfqfawpo7swsnuj63exy

Managing flash crowds on the Internet

I. Ari, B. Hong, E.L. Miller, S.A. Brandt, D.D.E. Long
11th IEEE/ACM International Symposium on Modeling, Analysis and Simulation of Computer Telecommunications Systems, 2003. MASCOTS 2003.  
We present a model of flash crowd events and evaluate the performance of various multi-level caching techniques suitable for managing these events.  ...  A flash crowd is a surge in traffic to a particular Web site that causes the site to be virtually unreachable.  ...  Our focus is on unexpected flash crowds or on flash crowds directed to "poor" Web sites that cannot afford outsourcing the distribution of their Web content via Content Distribution Networks (CDNs) even  ... 
doi:10.1109/mascot.2003.1240667 dblp:conf/mascots/AriHMBL03 fatcat:vq3nujsx5ncjzcvye5e4rzmvt4

Discriminating DDoS Flows from Flash Crowds Using Information Distance

Shui Yu, Theerasak Thapngam, Jianwen Liu, Su Wei, Wanlei Zhou
2009 2009 Third International Conference on Network and System Security  
We are motivated by the following fact: the attack flows are generated by the same prebuilt program (attack tools), however, flash crowds come from randomly distributed users all over the Internet.  ...  Discriminating DDoS flooding attacks from flash crowds poses a tough challenge for the network security community.  ...  On one hand, attackers can mimic the traffic features of flash crowds to disable our detectors. On the other hand, our detectors may treat the legitimate flash crowds as DDoS attacks.  ... 
doi:10.1109/nss.2009.29 dblp:conf/nss/YuTLWZ09 fatcat:rjyiug2j6fekthhuoqtqyihwmy

An Empirical Study of Flash Crowd Dynamics in a P2P-Based Live Video Streaming System

Bo Li, Gabriel Y. Keung, Susu Xie, Fangming Liu, Ye Sun, Hao Yin
2008 IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference  
In this paper, we examine the system dynamics under flash crowd based on measurements obtained from the Coolstreaming system.  ...  We are particularly concerned with the impact and user behaviors during flash crowd.  ...  Our focus in this study is on the system dynamics during flash crowd and its impact on the streaming performance.  ... 
doi:10.1109/glocom.2008.ecp.339 dblp:conf/globecom/LiKXLSY08 fatcat:s2ydaio6bvhzhb5sc323qrhdom

Analyzing strategies to effectively detect changes in content delivery networks

Andre Moreira, Moises Rodrigues, Ernani Azevedo, Djamel Sadok, Arthur Callado, Victor Souza
2015 2015 IFIP/IEEE International Symposium on Integrated Network Management (IM)  
Results show decrease on network resources usage without considerable changes on quality of service (QoS). Furthermore, our technique has similar performance in comparison to an omniscient strategy.  ...  Many strategies have been proposed to deal with aspects inherent to the CDN distribution model.  ...  Due to the considerable increase on localized requests during a flash crowd, the placement strategy replaces all the replica servers together in the flash crowd region.  ... 
doi:10.1109/inm.2015.7140357 dblp:conf/im/MoreiraRASCS15 fatcat:5xahmty7kvahvigew5ubllxi2e

An adaptable storage slicing algorithm for content delivery networks

Andre Moreira, Ernani Azevedo, Judith Kelner, Djamel Sadok, Arthur Callado, Victor Souza
2015 2015 IFIP/IEEE International Symposium on Integrated Network Management (IM)  
crowd AS AS3 1 st Flash crowd requests 1007 1 st Flash crowd start time 900s 1 st Flash crowd end time 1000s 2 nd Flash crowd AS AS7 2 nd Flash crowd requests 4005 2 nd Flash crowd start time  ...  crowd AS AS3 1 st Flash crowd requests 1007 1 st Flash crowd start time 900s 1 st Flash crowd end time 1000s 2 nd Flash crowd AS AS7 2 nd Flash crowd requests 4005 2 nd Flash crowd start time  ...  The number of requests, clients and objects depends on the trace used, as shown in Table II .1.  ... 
doi:10.1109/inm.2015.7140355 dblp:conf/im/MoreiraAKSCS15 fatcat:u2d3ub67zrgozhao4ft6pgyk6y

MashCache: Taming Flash Crowds by Using Their Good Features

Hikaru Horie, Masato Asahara, Hiroshi Yamada, Kenji Kono
2012 IPSJ Online Transactions  
Since it works completely on client-side, MashCache can tolerate flash crowds even if the external services the mashup depends on are not equipped with flash-crowd-resistant mechanisms.  ...  First, flash crowds start up very slowly. MashCache has enough time to prepare for the coming flash crowds. Second, flash crowds last for a short period.  ...  To demonstrate that MashCache can actually deal with flash crowds on mashups, we simulated small flash crowds on a simple typical mashup service.  ... 
doi:10.2197/ipsjtrans.5.21 fatcat:jq7ocruhh5ahbh637zb6cdazjq

TRANSIT: Supporting transitions in Peer-to-Peer live video streaming

Matthias Wichtlhuber, Bjorn Richerzhagen, Julius Ruckert, David Hausheer
2014 2014 IFIP Networking Conference  
The transmission of video content accounts for a large share of today's Internet traffic.  ...  While Video-on-Demand (VoD) substantially contributes to this, live streaming events such as video broadcasts from the Olympic Games can cause very high traffic volumes in the short term as well.  ...  ACKNOWLEDGMENT This work has been supported in parts by the European Union (FP7/#317846, SmartenIT and FP7/#318398, eCousin) and the German DFG (Collaborative Research Center 1053, MAKI).  ... 
doi:10.1109/ifipnetworking.2014.6857079 dblp:conf/networking/WichtlhuberRRH14 fatcat:nzgsv65nwvh2nl3iflq4lt5x5m

Optimizing and Load Balancing for Flash Crowd to Improve Quality of Service in Content Delivery Network

2019 VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE  
This method is also effective in handling of flash crowd situation by monitoring request rate.  ...  The online access has been increasing rapidly with the digitization of information, cheaper Internet service and affordable devices to access the Internet.  ...  LBNUC also manages to detect flash crowd effect at an early stage on the basis of request rate from end-users.  ... 
doi:10.35940/ijitee.k1868.0981119 fatcat:o5lboifpyzda7eqntltjvvpyna

Scalable internet services

F. Douglis, M.F. Kaashoek
2001 IEEE Internet Computing  
When the Internet started, an "Internet service" meant roughly one of three things: electronic mail, file transfer, or remote login.  ...  It is still used as a canonical example of the type of situation to avoida so-called flash crowd that overloads servers or networks and renders them useless.  ... 
doi:10.1109/mic.2001.939448 fatcat:2dishdqvmrhk5bint7sjm2rndq

TOPT: Supporting flash crowd events in hybrid overlay-based live streaming

Julius Ruckert, Bjorn Richerzhagen, Eduardo Lidanski, Ralf Steinmetz, David Hausheer
2015 2015 IFIP Networking Conference (IFIP Networking)  
The evaluation shows that the streaming topology, indeed, plays a major role during flash crowds.  ...  Flash crowds, where the number of users multiplies or significantly drops in a very small time frame, can cause serious degradations in the streaming performance.  ...  the Collaborative Research Center (CRC) 1053 -MAKI.  ... 
doi:10.1109/ifipnetworking.2015.7145336 dblp:conf/networking/RuckertRLSH15 fatcat:fk7yspgsd5dnvkxea3me4szr3y

Flash crowd mitigation via adaptive admission control based on application-level observations

Xuan Chen, John Heidemann
2005 ACM Transactions on Internet Technology  
NEWS detects flash crowds from changes in web response rate. Based on the application-level observations, NEWS adjusts the admitted request rate automatically and adaptively.  ...  We propose the network early warning system (NEWS) to protect servers and networks from flash crowds, which usually happen when too many requests are sent to a web site simultaneously.  ...  We appreciate the fruitful discussion with members in SAMAN and CONSER projects. We are graceful to Dr. Chuanxiong Guo and many people who have given us insightful suggestions for this work.  ... 
doi:10.1145/1084772.1084776 fatcat:5s4evtcnoncpdhguwwjtrk6gtm

A Dynamic-Resource-Allocation based flash crowd mitigation algorithm for Video-on-Demand network

Wenan Zhou, Dao-yi Wang
2010 2010 3rd International Conference on Computer Science and Information Technology  
Based on the study of the multicast and unicast hybrid cable network, video objects access model and flash crowd model, the simulation is done to show that the proposed DRA based flash crowd mitigation  ...  In this paper, a Dynamic-Resource-Allocation (DRA) based flash crowd mitigation algorithm for multicast and unicast hybrid VoD network is proposed, which can handle the flash crowd traffic smoothly though  ...  Each channel can carry multiple transport streams, and every stream can be accessed by some of the end users based on entitlement management.  ... 
doi:10.1109/iccsit.2010.5564874 fatcat:4nt6sranlfhlfk4glbppudgaey

P2P-Based Approach to Finding Replica Server Locations for Alleviating Flash Crowds

Masato ASAHARA, Kenji KONO, Toshinori KOJIMA, Ai HAYAKAWA
2010 IEICE transactions on information and systems  
We are developing ExaPeer, an infrastructure for dynamically repositioning replica servers on the Internet on the basis of demand fluctuations.  ...  Many services rely on the Internet to provide their customers with immediate access to information.  ...  But this estimation is ineffective because the demand on the Internet often fluctuates drastically in a short term; as described in Sect. 1, in flash crowds the number of clients suddenly increases five  ... 
doi:10.1587/transinf.e93.d.3027 fatcat:6lw2s6m7pnaz3kb77463vcui6e

Some Investigation on DDOS Attack Models in Mobile Networks

Yuvaraj D, Sivaram M, A. Mohamed Uvaze Ahamed, Nageswari S
2019 International Journal of Interactive Mobile Technologies  
., In parallel, there has also been a widespread increase in ways to illegally hack data available over the internet and tamper the services offered to the customer.  ...  There have been attacks to cause traffic congestion over the network by introducing artificial infection packets over the internet.  ...  Another class of flash crowds is to anticipate an unexpected and unscheduled occurrence of flash crowds.  ... 
doi:10.3991/ijim.v13i10.11304 fatcat:gqbdhy4rp5a6vbm7y43wcfow6e
« Previous Showing results 1 — 15 out of 8,700 results