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:
Mar. 03, 2009
Filed:
Sep. 24, 2004
Rajesh I Balay, Cupertino, CA (US);
Girish Bhat, San Diego, CA (US);
Gregory Lockwood, Redwood City, CA (US);
Ram Nagarajan, Sunnyvale, CA (US);
Rajesh I Balay, Cupertino, CA (US);
Girish Bhat, San Diego, CA (US);
Gregory Lockwood, Redwood City, CA (US);
Ram Nagarajan, Sunnyvale, CA (US);
Fortinet, Inc., Sunnyvale, CA (US);
Abstract
This document describes, among other things, a router providing service-enabled multicast forwarding for a flow-based architecture. Services are enabled using inbound/outbound policies from Access Control Lists (ACLs). In a first mode, per-flow services are not enabled, and flows are aggregated for efficiency. In a second mode, per-flow services are enabled, and control information for an outbound interface (OIF) is shared across all multicast flows that do not have per-flow service enabled. A flow management scheme for these modes allows dynamic multicast membership updates while reducing disruption of active flows. This supports a large multicast OIF list and a high rate of multicast 'Joins' and 'Leaves'. This provides scalability and performance, such as desired for deploying multicast for broadband subscriber applications.