Patent ID: 8571047
Filing Date: 2013-10-29
Classification: H04L

Abstract:
1. A method for managing a filter rule, comprising: receiving, by a Media Gateway (MG), a processing message sent by a Media Gateway Controller (MGC); and maintaining, by the MG, a packet filter rule context according to the processing message, wherein the packet filter rule context comprises a filter rule for filtering a packet received or sent by the MG, and the processing message comprises a message for creating, modifying or deleting the packet filter rule context wherein the packet filter rule context further comprises at least one of the following context properties: a filter rule object, indicating a network domain or an interface to which the filter rule is applied; a flag property, indicating that the context is a packet filter rule context; a packet filter rule switch property, indicating whether the filter rule in the packet filter rule context are valid; and a priority property, indicating a priority of the filter rule in the packet filter rule context.