Patent ID: 11962516
Assignee: CISCO TECHNOLOGY, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method including:
receiving a packet;
hashing elements of the packet to obtain a packet partial signature;
appending, to the packet partial signature, unhashed packet information to obtain a concatenated string of the packet partial signature and the unhashed packet information;
generating an action data value by hashing the concatenated string of the packet partial signature and the unhashed packet information;
accessing a hash store location in a hash store using the action data value as an address;
determining, based on data stored at the hash store location, whether the packet is a duplicate of a previously-received packet; and
based on whether the packet is a duplicate of a previously-received packet, one of allowing and preventing one of the packet and a copy of the packet to reach a downstream network node.