Invention Grant
- Patent Title: Designated forwarder selection for multihomed hosts in an ethernet virtual private network
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Application No.: US16872053Application Date: 2020-05-11
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Publication No.: US11411869B1Publication Date: 2022-08-09
- Inventor: Putu H. Subagio , Ravikanth Nasika , Saikat Bhattacharya , Chih-Tsung Huang
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Patterson + Sheridan, LLP
- Main IPC: H04L45/7453
- IPC: H04L45/7453 ; H04L12/46 ; H04L49/00 ; H04L47/125

Abstract:
Embodiments for handling multidestination traffic in a network are described. The multidestination traffic includes packets that are in transit to a multihomed destination in the network. Upon determining the destination is multihomed, a network switch determines a hash value from a selection of header values in the network traffic and uses the hash value to determine if the network switch is a designated forwarder for the multihomed destination. The network switch handles the network traffic according a designated forwarder status.
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