Scalable IP-services enabled multicast forwarding with efficient resource utilization

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United States of America Patent

PATENT NO 10038567
SERIAL NO

15097016

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Abstract

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Methods, apparatus and data structures are provided for managing multicast IP flows. According to one embodiment, a router identifies active multicast IP sessions. A data structure is maintained by the router that contains information regarding the active multicast IP sessions and includes multiple pairs of a source field and a group field ({S, G} pairs), a first pointer associated with each of the {S,G} pairs and a set of slots. Each of the {S, G} pairs defines an active multicast IP session. The source field defines a source of a multicast transmission of the multicast IP session and the group field defines a group corresponding to the multicast IP session. The first pointer points to a dynamically allocated set of outbound interface (OIF) blocks. Each slot has stored therein a second pointer to a transmit control block (TCB) data structure that services users participating in the multicast IP session.

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Patent Owner(s)

  • FORTINET INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Balay, Rajesh I Cupertino, US 18 513
Bhat, Girish San Diego, US 15 256
Lockwood, Gregory Redwood City, US 15 636
Nagarajan, Rama Krishnam Sunnyvale, US 5 31

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