The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 15, 2022

Filed:

Apr. 07, 2021
Applicant:

Mellanox Technologies Tlv Ltd., Raanana, IL;

Inventors:

Gil Levy, Hod Hasharon, IL;

Aviv Kfir, Nili, IL;

Matty Kadosh, Hadera, IL;

Salvatore Pontarelli, Rome, IT;

Pedro Reviriego, Madrid, ES;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 45/748 (2022.01); H04L 45/02 (2022.01); H04L 45/00 (2022.01); H04L 45/42 (2022.01); H04L 45/7453 (2022.01); H04L 45/48 (2022.01);
U.S. Cl.
CPC ...
H04L 45/748 (2013.01); H04L 45/02 (2013.01); H04L 45/26 (2013.01); H04L 45/42 (2013.01); H04L 45/7453 (2013.01);
Abstract

In one embodiment, a packet processing apparatus includes interfaces, a memory to store a representation of a routing table as a binary search tree of address prefixes, and store a marker with an embedded prefix including k marker bits providing a marker for an address prefix of a node corresponding to a prefix length greater than k, and n additional bits, such that the k marker bits concatenated with the n additional bits provide another address prefix, packet processing circuitry configured upon receiving a data packet having a destination address, to traverse the binary search tree to find a longest prefix match, compare a key with the k marker bits, extract an additional n bits from the destination address, and compare the extracted n bits with the n additional bits, and process the data packet in accordance with a forwarding action indicated by the longest prefix match.


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