Intelligent adjunct network device

摘要

An adjunct network device includes several ports, an uplink interface, and an adjunct forwarding engine coupled to the ports and the uplink interface. A first port is configured to receive a packet, which includes a destination address. The adjunct forwarding engine is configured to send the packet to the uplink interface if the destination address is not associated with any of the ports. The packet is sent to one of the ports if the destination address is associated with the one of the ports.

主权项

1. A method comprising:
receiving first forwarding information from a controlling network device via an uplink interface, wherein
the first forwarding information comprises one or more entries, andeach entry of the one or more entries comprises a destination address and an associated port identifier; determining whether local forwarding information stored in a local forwarding table comprises a first entry of the one or more entries, wherein
the local forwarding information comprises a plurality of destination addresses and a plurality of port identifiers, andthe determining comprises comparing a first destination address of the first entry with the local forwarding information; if the comparing indicates that the first destination address is not found in the local forwarding information
updating the local forwarding table, wherein
the updating comprises adding the first entry to the local forwarding information; and if the comparing indicates that the first destination address is found in the local forwarding information
discarding the first entry, anddetermining whether the first entry is consistent with the local forwarding information, wherein
the determining whether the first entry is consistent comprises comparing a first port identifier associated with the first entry with the local forwarding information.