Multicast traffic forwarding on pruned interface

Patent metadata

Field	Value
Publication number	US-8976644-B2
Application number	US-201313745636-A
Country	US
Kind code	B2
Filing date	Jan 18, 2013
Priority date	Jan 18, 2013
Publication date	Mar 10, 2015
Grant date	Mar 10, 2015

Abstract

Embodiments of the invention relate to forwarding traffic for link aggregation groups in a system. One embodiment includes a system with a first module that receives a packet and synchronizes a group membership based on the packet. A second module receives the synchronized group membership from the first module and creates link aggregation group (LAG) entries for a primary switch and a secondary. A router receives join requests from the second module for adding a first interface link and a second interface link to the router. A source transmits traffic for the LAG. The second interface link is placed in a pruned state based on a protocol independent multicast (PIM) assert message received from the second module by the primary switch and the secondary switch. The secondary link forwards traffic in the pruned state to an access switch upon the primary link failing.

First claim

What is claimed is:

1. A system, comprising:
a first module that receives a packet, and synchronizes a group membership based on the packet;
a second module that receives the synchronized group membership from the first module, and creates link aggregation group (LAG) entries for a primary switch and a secondary switch based on the synchronized group membership;
a router that receives one or more join requests from the second module for adding a first interface link and a seco…

Assignees

• IBM

Inventors

• Arumugam Sivakumar
• Bhagavathiperumal Chidambaram
• Somosundaram Ashok K M

Classifications

• H04L45/22 Primary

  Electricity · mapped topic

• H04L45/16 Primary

  Electricity · mapped topic

• Y02D30/50

  Cross-Sectional Technologies · mapped topic

• H04L45/245

  Electricity · mapped topic