INL: IP Networking Lab - bandwidth

MPTCP BW/Delay Benefit Measurements

juan — Wed, 11 Feb 2015 14:22:46 +0000

Avoiding Oscillations due to Intelligent Route Control Systems

dsaucez — Mon, 17 Mar 2008 10:55:17 +0000

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

dsaucez — Mon, 17 Mar 2008 08:04:45 +0000

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).