Invention Application
- Patent Title: DYNAMIC DESIGNATED FORWARDER ELECTION PER MULTICAST STREAM FOR EVPN ALL-ACTIVE HOMING
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Application No.: US17751112Application Date: 2022-05-23
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Publication No.: US20220286752A1Publication Date: 2022-09-08
- Inventor: Ali Sajassi , Samir Thoria , Tapraj Singh , Mankamana Prasad Mishra
- 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
- Main IPC: H04N21/6405
- IPC: H04N21/6405 ; H04L12/46 ; H04N21/24 ; H04N21/222 ; H04L65/611

Abstract:
A method is performed by a first provider edge (PE) of a redundancy group including provider edges configured with an Ethernet virtual private network (EVPN) segment identifier (EVI) and an Ethernet segment identifier (ESI) and that are multi-homed to a customer edge (CE). The method includes, upon receiving from the CE a join request including a group address for a multicast stream, electing a designated forwarder (DF) for the multicast stream. The electing includes: computing for each PE a respective affinity for the DF as a function of a respective address of the PE, the EVI, and the group address; and determining which PE has a largest affinity. The method further includes, if the first PE has the largest affinity or does not have the largest affinity, configuring the first PE as the designated forwarder or not configuring the first PE as the designated forwarder for the multicast stream, respectively.
Public/Granted literature
- US11917262B2 Dynamic designated forwarder election per multicast stream for EVPN all-active homing Public/Granted day:2024-02-27
Information query
IPC分类: