Multicast Features | 673IPv6 Multicast PoliciesIPv6 Multicast Policies is available only on platform: e• Limit the Number of IPv6 Multicast Routes on page 673• Prevent an IPv6 Neighbor from Forming an Adjacency on page 673• Prevent an IPv6 Source from Registering with the RP on page 674• Prevent an IPv6 PIM Router from Processing an IPv6 Join on page 674Limit the Number of IPv6 Multicast RoutesYou can limit the total number of IPv6 multicast routes on the system. The maximum number of multicastentries allowed on each line card is determined by the CAM profile. Multicast routes are stored in theIN-V6-McastFib CAM region, which has a fixed number of entries. Any limit configured via the CLI issuperseded by this hardware limit. The opposite is also true; the CAM might not be exhausted at the timethe CLI-configured route limit is reached.Prevent an IPv6 Neighbor from Forming an AdjacencyTask Command Syntax Command ModeLimit the total number of IPv6 multicast routes on thesystem. ipv6 multicast-limitRange: 1-50000Default: 15000CONFIGURATIONTask Command Syntax Command ModePrevent a router from participating in PIM. ipv6 pim neighbor-filter access-list CONFIGURATIONFTOS(conf)#ipv6 pim neighbor-filter NEIGH_ACLFTOS(conf)#ipv6 access-list NEIGH_ACLFTOS(conf-ipv6-acl)#show config!ipv6 access-list NEIGH_ACLseq 5 deny ipv6 host fe80::201:e8ff:fe0a:5ad anyseq 10 permit ipv6 any anyFTOS(conf-ipv6-acl)#
