The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2005
Filed:
Jun. 12, 2001
Christina H. Tran, San Jose, CA (US);
Daniel R. Ullum, San Jose, CA (US);
Yichou Lin, San Jose, CA (US);
Yan-ming Chen, Fremont, CA (US);
Silvano Gai, San Jose, CA (US);
Thomas J. Edsall, Cupertino, CA (US);
Christina H. Tran, San Jose, CA (US);
Daniel R. Ullum, San Jose, CA (US);
Yichou Lin, San Jose, CA (US);
Yan-ming Chen, Fremont, CA (US);
Silvano Gai, San Jose, CA (US);
Thomas J. Edsall, Cupertino, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A network traffic shaper provides high-speed, multi-level shaping. The traffic shaper is in communicating relationship with a forwarding engine, and includes a queue controller having a plurality of queues for storing messages, a scheduler for computing release times, at least one time-searchable memory and a corresponding memory controller. Each queue is preferably associated with a corresponding traffic specifier, and a release time is computed for each queue and stored in the time-searchable memory. When a stored release time expires, the message at the head of the corresponding queue is retrieved and is either moved into a different queue or forwarded by the network device. By moving messages through two or more queues, each having its own release time computed in response to a different traffic specifier, the traffic shaper can perform multi-level shaping on network messages.