Invention Grant
- Patent Title: Distance vector negative southbound topology information for routing in fat trees (RIFT) route
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Application No.: US17101579Application Date: 2020-11-23
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Publication No.: US11516120B2Publication Date: 2022-11-29
- Inventor: Pascal Thubert , Nagendra Kumar Nainar , Carlos M. Pignataro
- 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: Merchant & Gould P.C.
- Main IPC: H04L45/48
- IPC: H04L45/48 ; H04L45/12 ; H04L45/02 ; H04W40/24 ; H04L12/44

Abstract:
In one embodiment, a method is performed. A spine node in communication with a network may determine a subtree of a shadow cone of the spine node. The subtree may comprise a plurality of nodes and a plurality of links connecting pairs of the nodes. The spine node may determine a disaggregated route to a first leaf node to which a disaggregated prefix may be attached. The disaggregated route may be propagated to the plurality of the nodes of the subtree.
Public/Granted literature
- US20210075718A1 DISTANCE VECTOR NEGATIVE SOUTHBOUND TOPOLOGY INFORMATON FOR ROUTING IN FAT TREES (RIFT) ROUTE Public/Granted day:2021-03-11
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