Table item issuing method and message forwarding method

The invention provides a table item issuing method and a message forwarding method. A main control board card of message forwarding equipment in a message filtering system executes the following steps: issuing an access control table item (ACL) to each switching chip positioned in a service board card; the matching condition of the ACL comprises an identifier of a specific header, a message source is a port, connected with the message forwarding equipment, of the switching chip, and the execution action of the ACL comprises the following steps: forwarding the message to a programmable logic device; a redirection table item is issued to each programmable logic device located on the service board card; each redirection table item comprises a redirection matching condition and a redirection port, and the redirection table item is used for redirecting the message which comprises the redirection matching condition and is received from the internal port to the redirection port. According to the invention, the funct