11-12Configuring IPv6 BGP Route AttributesThis section describes how to use IPv6 BGP route attributes to modify BGP routing policy. Theseattributes are:z IPv6 BGP protocol preferencez Default LOCAL_PREF attributez MED attributez NEXT_HOP attributez AS_PATH attributePrerequisitesBefore configuring this task, you have:z Enabled IPv6 functionz Configured IPv6 BGP basic functionsConfiguring IPv6 BGP Preference and Default LOCAL_PREF and NEXT_HOPAttributesFollow these steps to perform this configuration:To do… Use the command… RemarksEnter system view system-view —Enter BGP view bgp as-number —Enter IPv6 address family view ipv6-family —Configure preference values forIPv6 BGP external, internal, localroutespreference{ external-preferenceinternal-preferencelocal-preference | route-policyroute-policy-name }OptionalThe default preference values ofexternal, internal and local routes are255, 255, 130 respectively.Configure the default localpreference default local-preference valueOptionalThe value defaults to 100.Advertise routes to an IPv6peer/peer group with the localrouter as the next hoppeer { ipv6-group-name |ipv6-address } next-hop-localRequiredBy default, IPv6 BGP specifies thelocal router as the next hop for routessent to an IPv6 eBGP peer/peergroup, but not for routes sent to anIPv6 iBGP peer/peer group.
