Invention Grant
- Patent Title: Reducing link state protocol traffic during graceful restart
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Application No.: US14700025Application Date: 2015-04-29
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Publication No.: US09755962B2Publication Date: 2017-09-05
- Inventor: Salih K A , Shraddha Hegde
- Applicant: Juniper Networks, Inc.
- 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.
- Priority: IN1186/CHE/2015 20150311
- Main IPC: H04L12/721
- IPC: H04L12/721 ; H04L12/751 ; H04L12/801

Abstract:
A routing device coupled to a remote routing device via a link on which a flood reduction technique is used, such as a demand circuit, is configured to store an indication of a link state of the remote routing device and a first sequence number associated with the link state, receive an indication that the remote routing device is performing a graceful restart, and then receive data indicative of a new link state of the remote routing device and a second sequence number. The routing device determines whether the new link state is different than the stored indication of the link state, and if not, avoids requesting the current link state from the remote routing device. In this manner, the routing device may reduce link-state protocol traffic within an autonomous system including the routing device and the remote routing device.
Public/Granted literature
- US20160269293A1 REDUCING LINK STATE PROTOCOL TRAFFIC DURING GRACEFUL RESTART Public/Granted day:2016-09-15
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