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MPTCP BW/Delay Benefit Measurements

Wed, 02/11/2015 - 17:22 by Juan Antonio Cordero • Categories:
Source code for probe and server for measuring MPTCP Delay and BW Aggregation Benefit
Research project related: 
Measuring the Internet
Our members: 
Juan Antonio Cordero
Programming language: 
Development State: 
Operational, in development, bugs detected in certain configurations

Avoiding Oscillations due to Intelligent Route Control Systems

Mon, 03/17/2008 - 13:55 by Damien Saucez • Categories:

Intelligent Route Control systems are tools that give the oportunity for multihomed ASes to modify the routes according to some performance criteria.

The paper "Avoiding Oscillations due to Intelligent Route Control Systems" written by Gao et al. at INFOCOM'06 shows, like the paper "Can Coexisting Overlays Inadvertenly Step on Each Other" (Keralapura et al., ICNP'05), that IRCs can lead to traffic oscilliations causing performances degradation.

The paper pin-points that the problem comes from two pitfalls:

Bandwidth estimation: metrics, measurement techniques, and tools

Mon, 03/17/2008 - 11:04 by Damien Saucez • Categories:

The paper titeled "Bandwidth estimation: metrics, measurement techniques, and tools" (R Prasad, C Dovrolis, M Murray, K Claffy - Network, IEEE, 2003) is divided in three main chapters. First, it defines the three following metrics:
- Capacity: the maximum possible IP layer transfer rate.
- Available bandwidth: the unused, or spare, capacity of a link during a certain time period.
- Bulk Transfer Capacity (BTC): the maximum throuhput obtainable by a single TCP connection (depends on many factor like rtt, window size, TCP implementation).

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