Archive for May, 2011

Incomplete thought: Just in time QoS

Filed in OpenFlow, QoS, SDN by on May 17, 2011 22 Comments
Incomplete thought: Just in time QoS

Imagine a data center where network QoS is adaptive and self adjusting to the current application conditions. Just in time QoS. Something much different from the static, stale, and generic configurations we are accustomed to today. Configuring QoS is a pain, most people avoid it to begin with. Yet some switches are very good at […]

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TCP Incast and Cloud application performance

Filed in Switching, TCP by on May 1, 2011 9 Comments
TCP Incast and Cloud application performance

Incast is a many-to-one communication pattern commonly found in cloud data centers implementing scale out distributed storage and computing frameworks such as Hadoop, MapReduce, HDFS, Cassandra, etc. — powering applications such as web search, maps, social networks, data warehousing and analytics. Incast can also more specifically be referred to as TCP Incast, as the cloud […]

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