Alcatel 060320-10, Rev. B Configuration Manual page 207

Configuring PIM
Sender 1 sends multicast data to its Designated Router (DR). The source DR then unicast-encapsulates the
data into PIM-SM Register messages and sends them on to the RP.
Receiver Designated
Router (DR)
Once the distribution tree for group G is learned at the RP, the encapsulated data being sent from the
source DR are now unencapsulated at the RP and forwarded natively to the Receiver.
Receiver Designated
Router (DR)
OmniSwitch AOS Release 7 Advanced Routing Configuration Guide
RP Router
Receiver 1
RP Router
Receiver 1
Sender 1
Source Designated
Router (DR)
Legend
Native Multicast Data
Encapsulated Data
Receiver PIM Join Message
Sender 1
Source Designated
Router (DR)
Legend
Native Multicast Data
Encapsulated Data
March 2011
PIM Overview
page 6-11