Users Guide

Table 68. Preventing a Host from Joining a Group — Description (continued)
Location Description
2/11/1
● Interface twentyfiveGigE 1/21
● ip pim sparse-mode
● ip address 10.11.12.2/24
● no shutdown
2/31/1
● Interface twentyfiveGigE 1/21
● ip pim sparse-mode
● ip address 10.11.23.1/24
● no shutdown
3/1/1
● Interface twentyfiveGigE 1/21
● ip pim sparse-mode
● ip address 10.11.5.1/24
● no shutdown
3/11/1
● Interface twentyfiveGigE 1/21
● ip pim sparse-mode
● ip address 10.11.13.2/24
● no shutdown
3/21/1
● Interface twentyfiveGigE 1/21
● ip pim sparse-mode
● ip address 10.11.23.2/24
● no shutdown
Receiver 1
● Interface VLAN 300
● ip pim sparse-mode
● ip address 10.11.3.1/24
● untagged twentyfiveGigE 1/21
● no shutdown
Receiver 2
● Interface VLAN 400
● ip pim sparse-mode
● ip address 10.11.4.1/24
● untagged twentyfiveGigE 1/21
● ip igmp access-group igmpjoinfilR2G2
● no shutdown
Preventing a PIM Router from Forming an Adjacency
To prevent a router from participating in PIM (for example, to configure stub multicast routing), use the following command.
● Prevent a router from participating in PIM.
INTERFACE mode
ip pim neighbor-filter
Setting a Threshold for Switching to the SPT
The functionality to specify a threshold for switchover to the shortest path trees (SPTs) is available on the system. After a
receiver receives traffic from the RP, PM-SM switches to SPT to forward multicast traffic. Every multicast group has an RP
and a unidirectional shared tree (group-specific shared tree).
The SPT-Threshold is zero, which means that the last-hop designated router (DR) joins the shortest path tree (SPT) to the
source upon receiving the first multicast packet.
Multicast Features
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