IPv6 BGP CommandsIPv6 border gateway protocol (IPv6 BGP) is supported on the C-Series, E-Series, Z-Series and S4810 platforms.BGP is an external gateway protocol that transmits interdomain routing information within and between AutonomousSystems (AS). Basically, two routers (called neighbors or peers) exchange information including full routing tables andperiodically send messages to update those routing tables.address-familyEnable the IPv4 multicast or the IPv6 address family.C-Series, E-Series, S-SeriesSyntax address-family [ipv4 multicast| ipv6unicast]Parameters ipv4multicast Enter BGPv4 multicast mode.ipv6unicast Enter BGPv6 mode.Defaults Not configured.Command Modes ROUTER BGPCommand History Version 6.5.1.0 IntroducedUsageInformationEnter ipv6unicast to enter the BGP for IPv6 mode (CONF-ROUTER_BGPv6_AF).aggregate-addressSummarize a range of prefixes to minimize the number of entries in the routing table.C-Series, E-SeriesSyntax aggregate-address ipv6-address prefix-length [advertise-mapmap-name] [as-set] [attribute-map map-name] [summary-only][suppress-map map-name]Parametersipv6-addressprefix-lengthEnter the IPv6 address in the x:x:x:x::x format followed by the prefixlength in the /x format. The range is /0 to /128.NOTE: The :: notation specifies successive hexadecimal fields ofzeros.advertise-mapmap-name(OPTIONAL) Enter the keywords advertise-map followed by thename of a configured route map to set filters for advertising anaggregate route.as-set (OPTIONAL) Enter the keywords as-set to generate path attributeinformation and include it in the aggregate.AS_SET includes AS_PATH and community information from theroutes included in the aggregated route.454
