3Com Switch 8800 Configuration Guide Chapter 21 BGP Configuration21-16Table 21-25 Configure BGP route summarizationOperation CommandConfigure the summaryautomatic function of the subnetroutessummaryCancel the summary automaticfunction of the subnet routes undo summaryConfigure local routeaggregation functionaggregate address mask [ as-set |attribute-policy route-policy-name |detail-suppressed | origin-policyroute-policy-name | suppress-policyroute-policy-name ]*Cancel local route aggregationfunctionundo aggregate address mask [ as-set |attribute-policy route-policy-name |detail-suppressed | origin-policyroute-policy-name | suppress-policyroute-policy-name ]*By default, the BGP will not perform local route aggregation.21.2.8 Configuring BGP Route FilteringI. Configuring BGP to filter the received route informationThe routes received by the BGP can be filtered, and only those routes that meet thecertain conditions will be received by the BGP.Perform the following configuration in BGP view.Table 21-26 Configure imported route filteringOperation CommandConfigure received route filteringfilter-policy { acl-number | ip-prefixip-prefix-name [ gateway ip-prefix-name ] }importCancel the received routefilteringundo filter-policy { acl-number | ip-prefixip-prefix-name [ gateway ip-prefix-name ] }importFilter the received global routinginformationfilter-policy { acl-number | ip-prefixip-prefix-name } importCancel the received global routefilteringundo filter-policy { acl-number | ip-prefixip-prefix-name } importBy default, the BGP will not filter the received routes.
