Patent Number: 8,879,553

Title: Multicast bandwidth multiplication for a unified distributed switch

Abstract: The distributed switch may include a plurality of chips (i.e., sub-switches) on a switch module. These sub-switches may receive from a computing device connected to a Tx/Rx port a multicast data frame (e.g., an Ethernet frame) that designates a plurality of different destinations. Instead of simply using one egress connection interface to forward the copies of the data frame to each of the destinations sequentially, the sub-switch may use a plurality of a connection interfaces to transfer copies of the multicast data frame simultaneously. The port that receives the multicast data frame can borrow the connection interfaces (and associated hardware such as buffers) assigned to these other ports to transmit copies of the multicast data frame simultaneously.

Inventors: Basso; Claude (Nice, FR), Greenfield; Todd A. (Rochester, MN), Hillier, III; Philip R. (Rochester, MN), Rudquist; Mark L. (Rochester, MN), Walk; Kenneth M. (Rochester, MN), Vanderpool; Brian T. (Byron, MN), Walk; Bruce M. (Rochester, MN)

Assignee: International Business Machines Corporation

International Classification: H04L 12/28 (20060101); H04J 3/26 (20060101); H04J 3/24 (20060101); H04L 12/54 (20130101); H04L 12/50 (20060101); G06F 15/167 (20060101)

Expiration Date: 2019-11-04 0:00:00