| US 7,496,039 B2 | ||
| Delay guarantee path setting system | ||
| Hitoshi Yamada, Kawasaki (Japan); and Akiko Okamura, Kawasaki (Japan) | ||
| Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
| Filed on Jan. 07, 2005, as Appl. No. 11/31,567. | ||
| Claims priority of application No. 2004-257412 (JP), filed on Sep. 03, 2004. | ||
| Prior Publication US 2006/0050635 A1, Mar. 09, 2006 | ||
| Int. Cl. H04L 12/28 (2006.01) | ||
| U.S. Cl. 370—238 [370/229; 370/351; 709/223; 709/238] | 9 Claims |
| 1. A network management apparatus, being provided to a network including a plurality of nodes, setting a traffic transfer
path based on a delay guarantee message requesting a path setting to guarantee a bandwidth and a delay in a segment connecting
two of the plurality of nodes, the network management apparatus comprising:
a pre-process section defining a weighted value for each of one or more links connecting between the plurality of nodes according
to a difference between a total delay of a minimum delay path of paths in the segment connecting two of the plurality of nodes
and a total delay of a minimum delay path in the segment connecting two of the plurality of nodes exclusive of a target link
in the segment;
wherein the pre-process section defines a sum of the difference calculated on each of segments formed between every possible
combination of two in the plurality of nodes as the weighted value for each of the links;
a link information storage section storing the delay, the available bandwidth, and the weighted value for each of the links;
and
a path setting section selecting, upon receiving the delay guarantee message, a path complying with the segment, the requested
delay, and the requested bandwidth in the received delay guarantee message, and having the links of the weighted value to
meet a predetermined condition, and setting the path as the traffic transfer path.
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