5-21To do... Use the command... RemarksConfigure BGP routedampening-relatedparametersdampening [ half-life-reachablehalf-life-unreachable reusesuppress ceiling ] [ route-policyroute-policy-name ]OptionalNot configured by default.The defaults are as follows:z half-life-reachable: 15 (in minutes)z half-life-unreachable: 15 (in minutes)z reuse: 750z suppress: 2000z ceiling: 16000Configuring BGP Route AttributesConfiguration PrerequisitesBefore configuring BGP routing policy, enable basic BGP functions.Before configuring BGP routing policy, make sure the following information is available.z BGP priority valuez LOCAL_PREF valuez MED valueConfiguring BGP Route AttributesBGP possesses many route attributes for you to control BGP routing policies.Follow these steps to configure BGP route attributes:To do... Use the command... RemarksEnter system view system-view —Enter BGP view bgp as-number —Configure the managementpreference of the exterior, interiorand local routespreference ebgp-valueibgp-value local-valueOptionalBy default, the managementpreference of the exterior, interior andlocal routes is 256, 256, and 130.Set the default local preference default local-preferencevalueOptionalBy default, the local preferencedefaults to 100.Configure thedefault local MEDvaluedefault med med-valueOptionalBy default, the med-value argument is0.Configure theMED attribute Permit to comparethe MED values ofthe routes comingfrom the neighborrouters in differentASs.compare-different-as-medOptionalBy default, the compare of MED valuesof the routes coming from the neighborrouters in different ASs is disabled.
