Pim-Sm - NETGEAR ProSafe GSM5212P Software Administration Manual

ProSafe Managed Switch
b. Scroll down and select the interface 1/0/24 check box.
c. In the Admin Mode field, select Enable.
d. Click Apply to save the settings.

PIM-SM

Protocol-independent multicast sparse mode (PIM-SM) is used to efficiently route multicast
traffic to multicast groups that can span wide area networks where bandwidth is a constraint.
Port
1/0/13
Switch A
Port
1/0/1
Port
1/0/21
Switch D
Port
1/0/24
Figure 44. PIM-SM
PIM-SM uses shared trees by default and implements source-based trees for efficiency; it
assumes that no hosts want the multicast traffic unless they specifically ask for it. It creates a
shared distribution tree centered on a defined rendezvous point (RP). Traffic from this source
Source
IP 192.168.1.1
Port 1/0/10
Port 1/0/9
Subnet 192.168.3.0/24
Port 1/0/22 Port 1/0/22
Subnet 192.168.6.0/24
Host
IP 192.168.4.2
Switch B
Port
1/0/11
Port
1/0/21
Switch C
Chapter 28. PIM | 427