Invention Grant
US08149691B1 Push-based hierarchical state propagation within a multi-chassis network device
有权
多机箱网络设备内基于推送式的分层状态传播
- Patent Title: Push-based hierarchical state propagation within a multi-chassis network device
- Patent Title (中): 多机箱网络设备内基于推送式的分层状态传播
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Application No.: US12411113Application Date: 2009-03-25
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Publication No.: US08149691B1Publication Date: 2012-04-03
- Inventor: Bharani Chadalavada , Umesh Krishnaswamy , Raj Tuplur
- Applicant: Bharani Chadalavada , Umesh Krishnaswamy , Raj Tuplur
- Applicant Address: US CA Sunnyvale
- Assignee: Juniper Networks, Inc.
- Current Assignee: Juniper Networks, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: H04L12/26
- IPC: H04L12/26

Abstract:
A multi-chassis network device sends state information to internal consumers within the multi-chassis device via a hierarchical distribution. As one example, a primary master routing engine within a control node of a multi-chassis router forwards state information to local routing engines within other chassis, which in turn distribute the state information to consumers on each chassis. Each local routing engine defers sending acknowledgement to the master routing engine until acknowledgements have been received from all consumers serviced by the local routing engine. Embodiments of the invention may reduce control plane data traffic and convergence times associated with distribution of state updates in the multi-chassis network device.
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