https://drupalinl.info.ucl.ac.be/taxonomy/term/172/0 en https://drupalinl.info.ucl.ac.be/content/mrinfo <h1>Internet Topology Discovery Using mrinfo</h1> <p>The Internet Group Management Protocol (IGMP - RFC1112) was initially designed to allow hosts to report their active multicast groups to the multicast router on their LAN. However, IGMP also provides some management tools such as the messages used by mrinfo. In practice, an mrinfo reply provides similar information as a show command on the router's command line interface. Therefore, mrinfo allows us to silently collect useful topological information.</p> <p><a href="https://drupalinl.info.ucl.ac.be/content/mrinfo">read more</a></p> Public degree mrinfo multicast router-to-AS mapping topology Thu, 06 May 2010 09:57:04 +0000 donnet 721 at https://drupalinl.info.ucl.ac.be https://drupalinl.info.ucl.ac.be/publications/quantifying-ases-multiconnectivity-using-multicast-information <p>Redundant connectivity (or multiconnectivity) between autonomous systems (ASes) is important for interdomain traffic engineering and fast recovery in case of failures. However, the redundancy of ASes peering links has not been quantitatively studied, mainly due to the difficulty of obtaining relevant data.</p> <p>In this paper, we show that the mrinfo multicast monitoring tool can provide useful data about the Internet topology and such links in particular. Our analysis relies on more than four years of daily queries to about ten thousand routers divided in more than two hundred ASes.</p> <p><a href="https://drupalinl.info.ucl.ac.be/publications/quantifying-ases-multiconnectivity-using-multicast-information">read more</a></p> Public ASes connectivity mrinfo multicast topology Mon, 03 Aug 2009 12:22:27 +0000 donnet 600 at https://drupalinl.info.ucl.ac.be