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Incoming Switch
Interface ASICs
When a data packet is passed from the receiving
interface to its connected FPC, it is received by the incoming Switch
Interface ASIC on that specific FPC. During the processing of the
packet by this ASIC, the information in the packet’s header
is examined by a BA classifier. This classification action associates
the packet with a particular forwarding class. In addition, the value
of the packet’s loss priority bit is set by this classifier.
Both the forwarding class and loss priority information are placed
into the notification cell, which is then transmitted to the T-series
Internet Processor ASIC.
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