Router with optimized statistical functionality
First Claim
1. A method of managing statistical information in a router, the method comprising:
- providing a router having an input, an output, and a shared memory, the router also having a forwarding path configured to forward a plurality of packets from the input to the output, and a service path configured to manage statistical data relating to packets forwarded through the forwarding path,the forwarding path having at least one counter configured to count aggregate packet information relating to the plurality of packets forwarded through the forwarding path;
counting, using the at least one counter, aggregate packet information relating to the plurality of packets forwarded through the forwarding path, counting producing count information;
storing, using the forwarding path, the count information in the shared memory of the router;
retrieving, using the service path, the count information from the shared memory; and
producing, using the service path, statistical information using the count information retrieved from the shared memory.
1 Assignment
0 Petitions
Accused Products
Abstract
A method has provides a router having an input, an output, and a shared memory. The router also has a forwarding path to forward a plurality of packets from the input to the output, and a service path to manage statistical data relating to packets forwarded through the forwarding path. The forwarding path has a counter to count aggregate packet information relating to the plurality of packets it forwards. Next, the method counts, using the counter(s), aggregate packet information relating to the packets forwarded through the forwarding path to produce count information. After producing the count information, the method uses the forwarding path to store the count information in the shared memory of the router, and then causes the service path to retrieve the count information from the shared memory. The service path ultimately produces statistical information using the count information retrieved from the shared memory.
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Citations
32 Claims
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1. A method of managing statistical information in a router, the method comprising:
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providing a router having an input, an output, and a shared memory, the router also having a forwarding path configured to forward a plurality of packets from the input to the output, and a service path configured to manage statistical data relating to packets forwarded through the forwarding path, the forwarding path having at least one counter configured to count aggregate packet information relating to the plurality of packets forwarded through the forwarding path; counting, using the at least one counter, aggregate packet information relating to the plurality of packets forwarded through the forwarding path, counting producing count information; storing, using the forwarding path, the count information in the shared memory of the router; retrieving, using the service path, the count information from the shared memory; and producing, using the service path, statistical information using the count information retrieved from the shared memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A router comprising:
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an input; an output; shared memory; a forwarding path configured to forward a plurality of packets from the input to the output, the forwarding path also having at least one counter configured to count aggregate packet information relating to the plurality of packets forwarded through the forwarding path, the at least one counter configured to count aggregate packet information relating to the plurality of packets forwarded through the forwarding path to produce count information for storage in the shared memory; and a service path configured to manage statistical data relating to packets forwarded through the forwarding path, the service path being configured to retrieve the count information from the shared memory and produce statistical information using the count information retrieved from the shared memory. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A computer program product for use on a computer system for managing statistical information in a router, the router having an input, an output, and a shared memory, the router also having a forwarding path configured to forward a plurality of packets from the input to the output, and a service path configured to manage statistical data relating to packets forwarded through the forwarding path, the forwarding path having at least one counter configured to count aggregate packet information relating to the plurality of packets forwarded through the forwarding path, the computer program product comprising a tangible, non-transient computer usable medium having computer readable program code thereon, the computer readable program code comprising:
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program code for counting, using the at least one counter, aggregate packet information relating to the plurality of packets forwarded through the forwarding path, counting producing count information; program code for storing, using the forwarding path, the count information in the shared memory of the router; program code for retrieving, using the service path, the count information from the shared memory; and program code for producing, using the service path, statistical information using the count information retrieved from the shared memory. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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Specification