SCHEME FOR PERFORMING ONE-PASS TUNNEL FORWARDING FUNCTION ON TWO-LAYER NETWORK STRUCTURE

摘要

A method used within a data center includes: receiving a packet; computing a specific overlay path/tree and a specific underlay path/tree according to a destination to transmit the packet, a first table, and a second table, wherein the first table includes forwarding information of station(s) corresponding to an overlay network structure, and the second table comprises forwarding information of station(s) corresponding to an underlay network structure; obtaining information of an overlay next hop station and information of an underlay next hop station according to the specific overlay path/tree and the specific underlay path/tree; and, performing packet encapsulation and transmission for the packet according to the information of the overlay next hop station and the information of the underlay next hop station.

主权项

1. A system running a device within a data center, comprising:
a first table comprising forwarding information of at least one station corresponding to an overlay network structure; a second table comprising forwarding information of at least one station corresponding to an underlay network structure; and a controller, couple to the first and second tables, configured for:
receiving a packet;computing a specific overlay path/tree and a specific underlay path/tree according to the first table the second table, and a destination to transmit the packet;obtaining information of an overlay next hop station and information of an underlay next hop station according to the specific overlay path/tree and the specific underlay path/tree; andperforming packet encapsulation and transmission for the packet according to the information of the overlay next hop station and the information of the underlay next hop station.