Invention Grant
- Patent Title: Dynamic route profile storage in a hardware trie routing table
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Application No.: US15723713Application Date: 2017-10-03
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Publication No.: US10404596B2Publication Date: 2019-09-03
- Inventor: Ankan Ghosh , Nataraj Bacthu , Apurup Reddy Chevuru , Laxmi Kant Agrawal , Swaminathan Narayanan
- 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: Polsinelli PC
- Main IPC: G06F3/06
- IPC: G06F3/06 ; H04L12/743

Abstract:
The present disclosure involves systems and methods for managing a trie routing table for a networking device of a communication or computer network. In one implementation, the networking device may utilize a dynamic algorithm for associating hashing functions with pivot tiles of the routing table to improve hash utilization and avoid hash collisions. Further, route prefixes may be relocated from pivot tiles in an attempt to free the tiles for reallocation to other prefix base width or may be relocated to other possible pivot tiles or to a general storage space when a hash collision is detected. This provides for even distribution of pivots within tiles which have base widths in range of a pivot route. The above implementations may occur together or separately to improve the operation of the networking device and provide faster route lookup.
Public/Granted literature
- US20190104067A1 DYNAMIC ROUTE PROFILE STORAGE IN A HARDWARE TRIE ROUTING TABLE Public/Granted day:2019-04-04
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