Patent Number: 6,480,490

Title: Interleaved access to address table in network switching system

Abstract: A novel method of providing interleaved access to an address lookup tablein a multiport communication system having a decision making engine forcontrolling data switching between receive and transmit ports. A sourceaddress (SA) lookup logic circuit and a destination address (DA) connectedin a pipeline are enabled to alternately access the address table. Anarbitration circuit provides the SA and DA logic circuits with automaticaccess to the address table in alternate time slots allocated to theselogic circuits. Also, the arbitration circuit enables an aging circuit anda host processor to periodically access the address table in pre-selectedtime slots.

Inventors: Merchant; Shashank (Sunnyvale, CA), Chiang; John M. (San Jose, CA)


International Classification: H04L 12/56 (20060101); H04L 012/28 ()

Expiration Date: 11/12014