NETWORK CONTROL METHOD, NETWORK SYSTEM, APPARATUS, AND PROGRAM

摘要

A switch includes at least a first table and a second table different in mapping of egress information of a network and user information to a packet. The first table is searched for a first packet received and operation according to an action corresponding to a search key of the first table is applied to the first packet to convert the first packet to a second packet. The second packet is supplied to the second table. The second table is then searched for the second packet. When the search key of the second table is matched, the operation according to the action corresponding to the search key of the second table is applied to the second packet to convert the second packet to a third packet (refer to FIG. 5).

主权项

1. A network control method comprising:
preparing in a switch a plurality of stages of tables that include at least a first table and a second table and that are different to each other in mapping of egress information of a network and user information to a packet, the table being searched whether predetermined information of a packet matches a search key of an entry in the table to perform an operation defined in an action corresponding to the search key matched; searching the first table for a first packet received, applying to the first packet an operation according to an action corresponding to a search key in the first table to convert the first packet to a second packet, when the first packet matches the search key in the first table, and supplying the second packet to the second table; and searching the second table for the second packet, applying to the second packet an operation according to an action corresponding to a search key in the second table to convert the second packet to a third packet, when the second packet matches the search key in the second table.