| US 7,609,692 B2 | ||
| Method and apparatus for controlling route in network | ||
| Hiromitsu Kajiyama, Osaka (Japan); Jiro Nakata, Osaka (Japan); and Nobuo Shirai, Osaka (Japan) | ||
| Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
| Filed on Jun. 23, 2006, as Appl. No. 11/472,986. | ||
| Claims priority of application No. 2006-071336 (JP), filed on Mar. 15, 2006. | ||
| Prior Publication US 2007/0217410 A1, Sep. 20, 2007 | ||
| Int. Cl. H04L 12/56 (2006.01) | ||
| U.S. Cl. 370—389 [370/392; 370/401; 709/223] | 15 Claims |
| 1. A route controlling apparatus provided on a center side in a network in which the center side and a base side are connected
by a plurality of different carriers, the route controlling apparatus comprising:
a load distribution table;
a load-distribution inapplicability table; and
a controlling unit
configured to create a new entry in the load distribution table when data is received by a host on the center side from a
host on the base side, wherein in the new entry a carrier selected for transmission of the data by a router on the base side
is associated with an address of the host on the base side,
configured to refer to the load-distribution inapplicability table when data is to be transmitted from the host on the center
side to the host on the base side, and
configured to select, as a route through which the data is to be transmitted, the carrier in the new entry when the address
of the host on the base side is not registered in the load-distribution inapplicability table, while otherwise to select a
carrier that is set in advance for the host on the base side.
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