Chapter 26. PIM | 397
ProSafe 7000 Managed Switch Release 8.0.3
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.
Subnet 192.168.1.0/24
Source
Port
Port 1/0/9
Port
Subnet 192.168.3.0/24
IP 192.168.1.1
1/0/13
1/0/1
Subnet 192.168.6.0/24
Subnet 192.168.2.0/24
Subnet 192.168.5.0/24
Subnet 192.168.4.0/24
Host
IP 192.168.4.2
Port 1/0/10
Port
1/0/11
Port
1/0/21
Port 1/0/22
Switch A
Switch D
Switch B
Switch C
Port 1/0/22
Port
1/0/24
Port
1/0/21
Figure 2. 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
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