| US 7,613,839 B2 | ||
| Method and apparatus for setting master node of ring network | ||
| Kazuyuki Inomoto, Yokohama (Japan); Shinji Takao, Yokohama (Japan); Yushi Nobayashi, Yokohama (Japan); Masao Mutou, Yokohama (Japan); Mineo Kotegawa, Yokohama (Japan); Hiroaki Shiraishi, Yokohama (Japan); Masaru Nishida, Yokohama (Japan); Ichiro Kagami, Kawasaki (Japan); Yoshinobu Takagi, Kawasaki (Japan); and Junichi Sawada, Kawasaki (Japan) | ||
| Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
| Filed on May 28, 2004, as Appl. No. 10/856,653. | ||
| Claims priority of application No. 2003-407712 (JP), filed on Dec. 05, 2003. | ||
| Prior Publication US 2005/0125501 A1, Jun. 09, 2005 | ||
| Int. Cl. G06F 15/16 (2006.01); G06F 15/173 (2006.01); G06F 15/177 (2006.01) | ||
| U.S. Cl. 709—251 [709/221; 709/223; 709/242] | 5 Claims |
| 1. A method of setting a master node apparatus of a ring network that has adjacently connected node apparatuses situated on
rightward and leftward lines of a bidirectional transmission channel, the method comprising:
counting the number of node interposed between a designated node apparatus and each node apparatus other than the designated
node apparatus on the rightward and leftward lines of the bidirectional transmission channel; and
setting one of the node apparatuses as the master node apparatus;
wherein the master node apparatus satisfies a relation of,
NHC_L =NHC_R or NHC_L =NHC_R-1,
wherein NHC_L is the number of interposed node apparatuses counted from the leftward line, and NHC_R is the number of interposed
node apparatuses counted from the rightward line;
wherein the designated node apparatus is a node apparatus at which reception traffic is concentrated.
|