Identifying nodes in a ring network
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United States of America Patent
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Jun 12, 2018
Issued Date -
N/A
app pub date -
Dec 20, 2016
filing date -
Jun 28, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and systems for determining a token master on a ring network are provided. According to one embodiment, a ring controller of a first blade participating in the ring network receives an indication that an arbitration token originated by an originating blade has been received. The ring controller compares the priorities of the originating blade and the first blade. When the priority of the originating blade is higher, the ring controller transmits the arbitration token to the next blade. When the priority of the originating blade is lower, the ring controller sets the first blade as the originating blade and transmits the arbitration token to the next blade. When the priorities are equal, the ring controller assumes the role of the token master, which is responsible for periodically transmitting a discovery marker onto the ring network to facilitate topology discovery.
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