Routing information management apparatus and computer...

Details Routing information management apparatus and computer... Routing information management apparatus and computer...

2011-02-15

2011-02-15

Trost, IV, William (Department: 2472)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S238000, C370S352000

Reexamination Certificate

active

07889740

ABSTRACT:
In order to provide the routing information of both the present time and the past, provide the latest routing information very quickly and improve searching speed of the routing information, a routing information management apparatus includes: a routing information receiving portion receiving routing information which broadly notifies a change/withdrawal of a communication route and which is received from an observation apparatus of communication routes; and a routing state table generation portion which generates a routing state table of each of the communication routes including both a route existing time based on a received time of the routing information and a range of an address space obtained by digitizing a prefix involved in the routing information, and which stores the routing state table in a routing information database.

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patent: 7218605 (2007-05-01), Ochiai et al.
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patent: 2003/0086422 (2003-05-01), Klinker et al.
patent: 2004/0081154 (2004-04-01), Kouvelas
http://www.nanog.org/lookingglass.html, May 14, 2008.
http://www.routeviews.org/, May 14, 2008.
http://www.ripe.net/, May 14, 2008.
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http://www.zebra.org/, May 14, 2008.

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