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:
Feb. 01, 2011
Filed:
May. 17, 2009
Rajesh I. Balay, San Jose, CA (US);
Girish Bhat, San Diego, CA (US);
Gregory Lockwood, Redwood City, CA (US);
Rama Krishnan Nagarajan, Sunnyvale, CA (US);
Rajesh I. Balay, San Jose, CA (US);
Girish Bhat, San Diego, CA (US);
Gregory Lockwood, Redwood City, CA (US);
Rama Krishnan Nagarajan, Sunnyvale, CA (US);
Fortinet, Inc., Sunnyvale, CA (US);
Abstract
Methods, apparatus and data structures are provided for managing multicast IP flows. According to one embodiment, a memory of a router has stored therein a data structure, which includes information relating to multicast sessions being handled by the router and including a first pointer for each multicast session, at least one chain of blocks of second pointers and one or more TCBs. Each first pointer points to a chain of blocks of second pointers. Each second pointer corresponds to an OIF of the router participating in the multicast session defined by the first pointer and defines how many times packets associated with the multicast session are to be replicated. The TCBs are configured to store control information relevant to processing or routing packets. Each second pointer points to a TCB and each TCB identifies the OIF out which packets of the multicast session are transmitted from the router.