Data traffic handling in a distributed fabric protocol (DFP) switching network architecture
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United States of America Patent
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Jul 1, 2014
Grant Date -
Dec 20, 2012
app pub date -
Aug 27, 2012
filing date -
May 14, 2011
priority date (Note) -
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Abstract
A switching network includes an upper tier having a master switch and a lower tier including a plurality of lower tier entities. The master switch, which has a plurality of ports each coupled to a respective lower tier entity, implements on each of the ports a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier entity coupled to that port. Data traffic communicated between the master switch and RPIs is queued within virtual ports that correspond to the RPIs with which the data traffic is communicated. The master switch applies data handling to the data traffic in accordance with a control policy based at least upon the virtual port in which the data traffic is queued, such that the master switch applies different policies to data traffic queued to two virtual ports on the same port of the master switch.
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