CESCA-I |
|
|||||||||||||||||||||||||||||||||||||||||||||||||||
|
The CESCA-I data set is a three hours GPS-synchronized IP header trace captured
with an Endace
DAG4.2GE dual Gigabit Ethernet
network measurement card in February 2004 at the
Anella Científica (Scientific Ring), the Catalan R&D network.
 Since the 1st of March, 2003 and for the following three years, the Scientific Ring (Anella Científica) is based on Giganet, the Al-Pi Telecomunicacions broadband network, which has been one of the first European Gigabit Ethernet networks over Dense Wavelength Division Multiplexing (DWDM). The Scientific Ring is the high perfomance communications network created in 1993 by the Generalitat de Catalunya through the Fundació Catalana per a la Recerca. Nowadays, it joins more than forty Catalan research institutions. With the renewal to Gigabit Ethernet technology, the Scientific Ring has multiplied by four its capacity up to 10 gigabit per second (Gbps), and more than half of these institutions have increased their connection bandwith from a minimum of 2, 34 or 155 megabits per second (Mbps) up to 10, 100 or 1,000 Mbps. Besides, these capacities will be easily increased when necessary. The Scientific Ring is connected to RedIRIS2, the new state research network, through Gigabit Ethernet technology as well. It has got two links at 2.5 Gbps with Madrid and Valencia, one link at 622 Mbps with Zaragoza, and another one at 155 Mbps with Palma de Mallorca. Through RedIRIS, the most advanced international research networks are reached: the pan-European Géant, the American Internet2, the Canadian CA*net-3, etc. Furthermore, the Scientific Ring has got its own connection to Internet, which allows it to establish differential policies, in addition to an excellent connectivity with the most important operators and Internet Exchange (CATNIX), which is also managed by CESCA. This data set was collected by Pere Barlet, researcher at the Advanced Broadband Communications Center CCABA, Department for Computer Architecture, Universitat Politècnica de Catalunya. Says Pere: If you look at the bottom of this page you will find a network graph which could be used on the web page. We are tapping the GbEth link between the CISCO 6513 and Juniper M-20 (see RedIRIS cloud). This link is build from a pair of GbEth links (one for each traffic direction) connecting the Anella Cientifica to the global Internet using our connection with RedIRIS (Spanish R&D network). The other links to Internet (CATNIX and Auna) are not used for academic purposes and they have less traffic than the tapped link.  Packet, bandwidth, application and connection statistics for CESCA-IAll statistics are gathered with 1 second bins, except application statistics, with 2 second bins. The distortion in the flow graphs at the end is due to a 64 second timeout being applied for all flows.
Data is available at the following locations: | ||||||||||||||||||||||||||||||||||||||||||||||||||||
