Cisco Systems 3560 Manual De Usuario

When debugging interoperability problems between PIMv1 and PIMv2, check these in the order shown:

Verify RP mapping with the show ip pim rp-hash privileged EXEC command, making sure that all 
systems agree on the same RP for the same group.

Verify interoperability between different versions of DRs and RPs. Make sure the RPs are 
interacting with the DRs properly (by responding with register-stops and forwarding decapsulated 
data packets from registers).

These sections describe the optional advanced PIM features:

 (optional)

 (optional)

By default, members of a group receive data from senders to the group across a single data-distribution 
tree rooted at the RP. 

 shows this type of shared-distribution tree. Data from senders is 

delivered to the RP for distribution to group members joined to the shared tree. 

If the data rate warrants, leaf routers (routers without any downstream connections) on the shared tree 
can use the data distribution tree rooted at the source. This type of distribution tree is called a 
shortest-path tree or source tree. By default, the software switches to a source tree upon receiving the 
first data packet from a source.

Router A

Source

Receiver

Router C

RP

Router B

Shared tree
from RP

Source tree

(shortest

path tree)

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