1-16To do… Use the command… RemarksConfigure the maximumnumber of load balanced routes balance numberRequiredBy default, no load balancing isenabled.Configuring a Large Scale IPv6 BGP NetworkIn a large-scale IPv6 BGP network, configuration and maintenance become no convenient due to toomany peers. In this case, configuring peer groups makes management easier and improves routedistribution efficiency. Peer group includes iBGP peer group, where peers belong to the same AS, andeBGP peer group, where peers belong to different ASs. If peers in an eBGP group belong to the sameexternal AS, the eBGP peer group is a pure eBGP peer group, and if not, a mixed eBGP peer group.In a peer group, all members enjoy a common policy. Using the community attribute can make a set ofIPv6 BGP routers in multiple ASs enjoy the same policy, because sending of community between IPv6BGP peers is not limited by AS.To guarantee connectivity between iBGP peers, you need to make them fully meshed, but it becomesunpractical when there are too many iBGP peers. Using route reflectors or confederation can solve it. Ina large-scale AS, both of them can be used.Confederation configuration of IPv6 BGP is identical to that of BGP4, so it is not mentioned here. Thefollowing describes:z Configuring IPv6 BGP peer groupsz Configuring IPv6 BGP communityz Configuring IPv6 BGP route reflectorsPrerequisitesBefore configuring IPv6 BGP peer groups, you need to:z Make peer nodes accessible to each other at the network layerz Enable BGP and configure a router ID.Configuring IPv6 BGP Peer GroupConfiguring an iBGP peer groupFollow these steps to configure an iBGP group:To do… Use the command… RemarksEnter system view system-view —Enter BGP view bgp as-number —Enter IPv6 address family view ipv6-family —Create an iBGP peer group group ipv6-group-name[ internal ] RequiredAdd a peer into the grouppeer ipv6-address groupipv6-group-name [ as-numberas-number ]RequiredNot added by default
