Multiplex communications – Network configuration determination – Using a particular learning algorithm or technique
Reexamination Certificate
2005-02-17
2009-12-15
Kumar, Pankaj (Department: 2419)
Multiplex communications
Network configuration determination
Using a particular learning algorithm or technique
C370S389000, C709S238000, C709S221000, C709S252000
Reexamination Certificate
active
07633889
ABSTRACT:
The present invention provides a carrier network in which a spanning tree with no loops can be constructed even in a dual homing configuration, and a communication method for a control frame. By allocating an identical virtual network identifier to a plurality of user networks connected to the carrier network, a single virtual network is constituted. An ingress communication node connected to a first user network of the plurality of user networks attaches a tag including the virtual network identifier to a control frame transmitted from the first user network, and transmits the control frame attached with the tag to a transmission destination determined on the basis of the virtual network identifier. An egress communication node connected to a second user network of the plurality of user networks receives the control frame attached with the tag, which is to be transmitted to the second user network, removes the tag from the control frame attached with the tag, and transmits the control frame to the second user network.
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International Search Report dated Apr. 15, 2003.
Doukai Masami
Higashitaniguchi Atsuko
Kinoshita Hiroshi
Norimatsu Satsuki
Foud Hicham B
Fujitsu Limited
Fujitsu Patent Center
Kumar Pankaj
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