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With the IPX Routing Information Protocol (RIP) and Service Advertising Protocol (SAP) protocol route filter policies, you can configure route filters to give you greater control over the learning and announcing of IPX RIP/SAP packets from one area of an IPX internetwork to another. Using route filters helps maximize the use of the available bandwidth throughout the IPX internetwork, and helps improve network security by restricting a user's view of other networks.
For more information about the IPX protocol concepts and terminology, see Configuring IPX Routing Operations (Passport 8000 Series Switch Release 3.3.x, "IP Routing Concepts."