METHOD AND APPARATUS FOR EFFICIENTLY PROCESSING DATA PACKETS IN A COMPUTER NETWORK
First Claim
1. A method of assigning priority to a data packet, comprising:
- setting a default priority for the data packet; and
modifying the default priority in accordance with packet information specified in the data packet.
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Accused Products
Abstract
According to an embodiment of the invention, a network device such as a router or switch provides efficient data packet handling capability. The network device includes one or more input ports for receiving data packets to be routed, as well as one or more output ports for transmitting data packets. The network device includes an integrated port controller integrated circuit for routing packets. The integrated circuit includes an interface circuit, a received packets circuit, a buffer manager circuit for receiving data packets from the received packets circuit and transmitting data packets in one or more buffers and reading data packets from the one or more buffers. The integrated circuit also includes a rate shaper counter for storing credit for a traffic class, so that the integrated circuit can support input and/or output rate shaping. The integrated circuit may be associated with an IRAM, a CAM, a parameter memory configured to hold routing and/or switching parameters, which may be implemented as a PRAM, and an aging RAM, which stores aging information. The aging information may be used by a CPU coupled to the integrated circuit via a system interface circuit to remove entries from the CAM and/or the PRAM when an age count exceeds an age limit threshold for the entries.
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Citations
9 Claims
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1. A method of assigning priority to a data packet, comprising:
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setting a default priority for the data packet; and
modifying the default priority in accordance with packet information specified in the data packet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification