The BGP ORF function can be used to control the maximum number of routes that can be sent by a BGP peer. To achieve this, which of the following tools is used to send such a route list to BGP peers?
TheOutbound Route Filtering (ORF)function in BGP allows a BGP speaker to inform its peer about the prefixes that it wants to receive, thereby reducing unnecessary route advertisements.
IP Prefix-List (D)is the correct answer because it is used to define the list of prefixes that are sent to the BGP peer during theORF capability negotiation.
Filter-policy (A)andRoute-policy (B)are used for controlling routing information locally or filtering incoming/outgoing routes but do not directly control the number of routes sent using ORF.
ACL (C)is primarily used for packet filtering and is not related to BGP route filtering.
[Reference:, Huawei HCIE Datacom Official Certification Guide, Huawei BGP Configuration and Maintenance Guide, RFC 5291: Outbound Route Filtering Capability for BGP-4, ===========, ]
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