Invention Grant
- Patent Title: Fast recovery of multicast router ports on spanning tree protocol (STP) topology change in a layer 2 (L2) network
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Application No.: US15402102Application Date: 2017-01-09
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Publication No.: US10355873B2Publication Date: 2019-07-16
- Inventor: Chidambaram Bhagavathiperumal , Angu Selvam Chandra Sekaran , Suryanarayan Ramamurthy , Jun Yao , Yuan Yuan Zhang
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Zilka-Kotab, P.C.
- Main IPC: H04L12/18
- IPC: H04L12/18 ; H04L12/703 ; H04L12/751 ; H04L12/761 ; H04L12/24 ; H04L12/26 ; H04L12/753 ; H04L12/931

Abstract:
In one embodiment, an apparatus includes a processing circuit and logic integrated with and/or executable by the processing circuit. The logic is configured to cause the processing circuit to handle Internet Group Membership Protocol (IGMP) messages received from other devices in a network. Also, the logic is configured to cause the processing circuit to create a general query solicit (GQS) message configured to solicit a general query (GQ) from a multicast snooping querier coupled with the apparatus. In another embodiment, a method includes handling, using a switch in a network, IGMP messages received from other devices in the network, and creating, using the switch, a GQS message configured to solicit a GQ from a multicast snooping querier coupled with the switch. Other systems, methods, and computer program products are described in more embodiments.
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