mrinfo

  • user warning: Can't create/write to file '/tmp/#sql_4d68_0.MYI' (Errcode: 30) query: SELECT t.tid, t.* FROM inl_term_data t INNER JOIN inl_term_hierarchy h ON h.parent = t.tid LEFT JOIN inl_term_data tac_td ON t.tid = tac_td.tid WHERE (t.tid IN (0, 1) OR tac_td.vid NOT IN (1)) AND ( h.tid = 171 ) ORDER BY weight, name in /var/www/obonet/includes/database.mysql.inc on line 174.
  • user warning: Can't create/write to file '/tmp/#sql_4d68_0.MYI' (Errcode: 30) query: SELECT t.* FROM inl_term_node r INNER JOIN inl_term_data t ON r.tid = t.tid INNER JOIN inl_vocabulary v ON t.vid = v.vid LEFT JOIN inl_term_data tac_td ON t.tid = tac_td.tid WHERE (t.tid IN (0, 1) OR tac_td.vid NOT IN (1)) AND ( r.nid = 634 ) ORDER BY v.weight, t.weight, t.name in /var/www/obonet/includes/database.mysql.inc on line 174.
  • user warning: Can't create/write to file '/tmp/#sql_4d68_0.MYI' (Errcode: 30) query: SELECT t.* FROM inl_term_node r INNER JOIN inl_term_data t ON r.tid = t.tid INNER JOIN inl_vocabulary v ON t.vid = v.vid LEFT JOIN inl_term_data tac_td ON t.tid = tac_td.tid WHERE (t.tid IN (0, 1) OR tac_td.vid NOT IN (1)) AND ( r.nid = 600 ) ORDER BY v.weight, t.weight, t.name in /var/www/obonet/includes/database.mysql.inc on line 174.

mrinfo

Thu, 05/06/2010 - 12:57 by Benoit Donnet • Categories:

Internet Topology Discovery Using mrinfo

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.


Two new Internet topology datasets

Tue, 09/15/2009 - 12:42 by Olivier Bonaventure

The research community has developed many tools to try to map the topology of the Internet. As the Internet is a decentralised network composed of more thank 30000 different networks, it is very difficult (and perhaps impossible) to obtain a detailed map of the network. The most widely use to infer the router-level topology of the Internet is traceroute.


Quantifying ASes Multiconnectivity using Multicast Information

Mon, 08/03/2009 - 15:22 by Benoit Donnet
Pascal Mérindol, Virginie Van den Schrieck, Benoit Donnet, Olivier Bonaventure and Jean-Jacques Pansiot. Quantifying ASes Multiconnectivity using Multicast Information. Proc. ACM USENIX Internet Measurement Conference (IMC), pages 370-376, November 2009. bibTeX  pdf 

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