Vyatta NOS documentation

Learn how to install, configure, and operate Vyatta Network Operating System (Vyatta NOS), which helps to drive our virtual networking and physical platforms portfolio.

protocols pim dense-group <group-ip-address>

Uses the dense-group keyword to force the interface PIM mode for a group to be dense. The groups can only be SM, DM, SSM, or Bidir; the sparse-dense interface mode allows the interface to flood traffic for DM groups

set protocols pim dense-group group-ip-address
delete protocols pim dense-group group-ip-address
show protocols pim dense-group group-ip-address
group-ip-address
The IPv4 address for the data plane. The format of the IPv4 address is x.x.x.x/x.

Configuration mode

protocols {
        
        pim {
                dense-group 225.0.0.3
                rp-address 5.5.5.5 {
                        list 1
                }
        }
}

PIM dense-groups are added to force designated groups to be dense when otherwise the presence of an RP(G) would cause all groups to be sparse.

Of particular significance is that SDM requires at least one RP to be present in the network to function, even in the absence of an RP(G) for any multicast group. Without an RP, DM traffic does not flow through SDM configured interfaces (unless connected interfaces on adjoining routers are configured for DM).

Use the set version of the command to force the interface PIM mode for a group to be dense.

Use the delete version of the command to undo the PIM configuration.

Use the show version of the command to display the PIM configuration.

The following example shows the use of dense-group and access-list in the context of SDM.

policy {
        route {
                access-list 1 {
                        rule 1 {
                                action permit
                                source {
                                        inverse-mask 0.0.0.3
                                        network 225.0.0.0
                                }
                        }
                }
									}
}
               
protocols {
        pim {
                dense-group 225.0.0.3
                rp-address 5.5.5.5 {
                        list 1
                }
        }
}
Note: The group must be defined as "source" rather than "destination".